roundcube: remove default themes

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
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# On branch master
# Your branch is up to date with 'origin/master'.
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# Changes to be committed:
#	deleted:    skins/classic/README
#	deleted:    skins/classic/addressbook.css
#	deleted:    skins/classic/common.css
#	deleted:    skins/classic/embed.css
#	deleted:    skins/classic/functions.js
#	deleted:    skins/classic/googiespell.css
#	deleted:    skins/classic/images/abook_toolbar.png
#	deleted:    skins/classic/images/buttons/add_act.png
#	deleted:    skins/classic/images/buttons/add_pas.png
#	deleted:    skins/classic/images/buttons/add_sel.png
#	deleted:    skins/classic/images/buttons/bg.gif
#	deleted:    skins/classic/images/cleardot.png
#	deleted:    skins/classic/images/contactactions.png
#	deleted:    skins/classic/images/contactgroup.png
#	deleted:    skins/classic/images/contactpic.png
#	deleted:    skins/classic/images/dbutton.png
#	deleted:    skins/classic/images/dimple.png
#	deleted:    skins/classic/images/display/icons.gif
#	deleted:    skins/classic/images/display/icons.png
#	deleted:    skins/classic/images/display/loading.gif
#	deleted:    skins/classic/images/display/loading_blue.gif
#	deleted:    skins/classic/images/favicon.ico
#	deleted:    skins/classic/images/filedrop.png
#	deleted:    skins/classic/images/googiespell/change_lang.gif
#	deleted:    skins/classic/images/googiespell/indicator.gif
#	deleted:    skins/classic/images/googiespell/ok.gif
#	deleted:    skins/classic/images/googiespell/spellc.gif
#	deleted:    skins/classic/images/icons/attachment.png
#	deleted:    skins/classic/images/icons/blank.gif
#	deleted:    skins/classic/images/icons/collapsed.png
#	deleted:    skins/classic/images/icons/columnpicker.gif
#	deleted:    skins/classic/images/icons/delete.png
#	deleted:    skins/classic/images/icons/deleted.png
#	deleted:    skins/classic/images/icons/dot.png
#	deleted:    skins/classic/images/icons/down_small.gif
#	deleted:    skins/classic/images/icons/expanded.png
#	deleted:    skins/classic/images/icons/extwin.png
#	deleted:    skins/classic/images/icons/flagged.png
#	deleted:    skins/classic/images/icons/folders.png
#	deleted:    skins/classic/images/icons/forwarded.png
#	deleted:    skins/classic/images/icons/forwarded_replied.png
#	deleted:    skins/classic/images/icons/glass.png
#	deleted:    skins/classic/images/icons/glass_roll.png
#	deleted:    skins/classic/images/icons/groupactions.png
#	deleted:    skins/classic/images/icons/html.png
#	deleted:    skins/classic/images/icons/minus.gif
#	deleted:    skins/classic/images/icons/plus.gif
#	deleted:    skins/classic/images/icons/rename.png
#	deleted:    skins/classic/images/icons/replied.png
#	deleted:    skins/classic/images/icons/reset.gif
#	deleted:    skins/classic/images/icons/silhouette.png
#	deleted:    skins/classic/images/icons/sort.gif
#	deleted:    skins/classic/images/icons/text.png
#	deleted:    skins/classic/images/icons/unflagged.png
#	deleted:    skins/classic/images/icons/unread.png
#	deleted:    skins/classic/images/icons/unread_children.png
#	deleted:    skins/classic/images/icons/up_small.gif
#	deleted:    skins/classic/images/listheader.gif
#	deleted:    skins/classic/images/mail_footer.png
#	deleted:    skins/classic/images/mail_toolbar.png
#	deleted:    skins/classic/images/messageactions.png
#	deleted:    skins/classic/images/messageicons.png
#	deleted:    skins/classic/images/pagenav.gif
#	deleted:    skins/classic/images/quota-colors.png
#	deleted:    skins/classic/images/quota.png
#	deleted:    skins/classic/images/roundcube_logo.png
#	deleted:    skins/classic/images/searchfield.gif
#	deleted:    skins/classic/images/tabs-left.gif
#	deleted:    skins/classic/images/tabs-right.gif
#	deleted:    skins/classic/images/taskbar.png
#	deleted:    skins/classic/images/taskicons.gif
#	deleted:    skins/classic/images/taskicons.png
#	deleted:    skins/classic/images/tree.gif
#	deleted:    skins/classic/images/watermark.gif
#	deleted:    skins/classic/includes/header.html
#	deleted:    skins/classic/includes/links.html
#	deleted:    skins/classic/includes/messagetoolbar.html
#	deleted:    skins/classic/includes/settingstabs.html
#	deleted:    skins/classic/includes/taskbar.html
#	deleted:    skins/classic/mail.css
#	deleted:    skins/classic/meta.json
#	deleted:    skins/classic/print.css
#	deleted:    skins/classic/safari.css
#	deleted:    skins/classic/settings.css
#	deleted:    skins/classic/splitter.js
#	deleted:    skins/classic/templates/about.html
#	deleted:    skins/classic/templates/addressbook.html
#	deleted:    skins/classic/templates/bounce.html
#	deleted:    skins/classic/templates/compose.html
#	deleted:    skins/classic/templates/contact.html
#	deleted:    skins/classic/templates/contactadd.html
#	deleted:    skins/classic/templates/contactedit.html
#	deleted:    skins/classic/templates/contactprint.html
#	deleted:    skins/classic/templates/contactsearch.html
#	deleted:    skins/classic/templates/error.html
#	deleted:    skins/classic/templates/folderedit.html
#	deleted:    skins/classic/templates/folders.html
#	deleted:    skins/classic/templates/identities.html
#	deleted:    skins/classic/templates/identityedit.html
#	deleted:    skins/classic/templates/importcontacts.html
#	deleted:    skins/classic/templates/login.html
#	deleted:    skins/classic/templates/mail.html
#	deleted:    skins/classic/templates/message.html
#	deleted:    skins/classic/templates/messageerror.html
#	deleted:    skins/classic/templates/messagepart.html
#	deleted:    skins/classic/templates/messagepreview.html
#	deleted:    skins/classic/templates/messageprint.html
#	deleted:    skins/classic/templates/plugin.html
#	deleted:    skins/classic/templates/responseedit.html
#	deleted:    skins/classic/templates/responses.html
#	deleted:    skins/classic/templates/settings.html
#	deleted:    skins/classic/templates/settingsedit.html
#	deleted:    skins/classic/thumbnail.png
#	deleted:    skins/classic/watermark.html
#	deleted:    skins/elastic/.gitignore
#	deleted:    skins/elastic/README.md
#	deleted:    skins/elastic/fonts/fa-regular-400.woff
#	deleted:    skins/elastic/fonts/fa-regular-400.woff2
#	deleted:    skins/elastic/fonts/fa-solid-900.woff
#	deleted:    skins/elastic/fonts/fa-solid-900.woff2
#	deleted:    skins/elastic/fonts/roboto-v19-italic-700.woff
#	deleted:    skins/elastic/fonts/roboto-v19-italic-700.woff2
#	deleted:    skins/elastic/fonts/roboto-v19-italic.woff
#	deleted:    skins/elastic/fonts/roboto-v19-italic.woff2
#	deleted:    skins/elastic/fonts/roboto-v19-regular-700.woff
#	deleted:    skins/elastic/fonts/roboto-v19-regular-700.woff2
#	deleted:    skins/elastic/fonts/roboto-v19-regular.woff
#	deleted:    skins/elastic/fonts/roboto-v19-regular.woff2
#	deleted:    skins/elastic/images/contactgroup.svg
#	deleted:    skins/elastic/images/contactpic.svg
#	deleted:    skins/elastic/images/corner-handle.svg
#	deleted:    skins/elastic/images/download.svg
#	deleted:    skins/elastic/images/favicon.ico
#	deleted:    skins/elastic/images/logo.svg
#	deleted:    skins/elastic/meta.json
#	deleted:    skins/elastic/styles/_styles.less
#	deleted:    skins/elastic/styles/_variables.less
#	deleted:    skins/elastic/styles/colors.less
#	deleted:    skins/elastic/styles/embed.less
#	deleted:    skins/elastic/styles/fontawesome.less
#	deleted:    skins/elastic/styles/global.less
#	deleted:    skins/elastic/styles/layout.less
#	deleted:    skins/elastic/styles/mixins.less
#	deleted:    skins/elastic/styles/print.less
#	deleted:    skins/elastic/styles/styles.less
#	deleted:    skins/elastic/styles/variables.less
#	deleted:    skins/elastic/styles/widgets/buttons.less
#	deleted:    skins/elastic/styles/widgets/common.less
#	deleted:    skins/elastic/styles/widgets/dialogs.less
#	deleted:    skins/elastic/styles/widgets/editor.less
#	deleted:    skins/elastic/styles/widgets/forms.less
#	deleted:    skins/elastic/styles/widgets/jqueryui.less
#	deleted:    skins/elastic/styles/widgets/lists.less
#	deleted:    skins/elastic/styles/widgets/menu.less
#	deleted:    skins/elastic/styles/widgets/messages.less
#	deleted:    skins/elastic/templates/about.html
#	deleted:    skins/elastic/templates/addressbook.html
#	deleted:    skins/elastic/templates/bounce.html
#	deleted:    skins/elastic/templates/compose.html
#	deleted:    skins/elastic/templates/contact.html
#	deleted:    skins/elastic/templates/contactedit.html
#	deleted:    skins/elastic/templates/contactimport.html
#	deleted:    skins/elastic/templates/contactprint.html
#	deleted:    skins/elastic/templates/contactsearch.html
#	deleted:    skins/elastic/templates/dialog.html
#	deleted:    skins/elastic/templates/error.html
#	deleted:    skins/elastic/templates/folderedit.html
#	deleted:    skins/elastic/templates/folders.html
#	deleted:    skins/elastic/templates/identities.html
#	deleted:    skins/elastic/templates/identityedit.html
#	deleted:    skins/elastic/templates/includes/footer.html
#	deleted:    skins/elastic/templates/includes/layout.html
#	deleted:    skins/elastic/templates/includes/mail-menu.html
#	deleted:    skins/elastic/templates/includes/menu.html
#	deleted:    skins/elastic/templates/includes/pagenav.html
#	deleted:    skins/elastic/templates/includes/settings-menu.html
#	deleted:    skins/elastic/templates/login.html
#	deleted:    skins/elastic/templates/mail.html
#	deleted:    skins/elastic/templates/message.html
#	deleted:    skins/elastic/templates/messagepart.html
#	deleted:    skins/elastic/templates/messageprint.html
#	deleted:    skins/elastic/templates/plugin.html
#	deleted:    skins/elastic/templates/responseedit.html
#	deleted:    skins/elastic/templates/responses.html
#	deleted:    skins/elastic/templates/settings.html
#	deleted:    skins/elastic/templates/settingsedit.html
#	deleted:    skins/elastic/thumbnail.png
#	deleted:    skins/elastic/ui.js
#	deleted:    skins/elastic/watermark.html
#	deleted:    skins/larry/README
#	deleted:    skins/larry/addressbook.css
#	deleted:    skins/larry/embed.css
#	deleted:    skins/larry/googiespell.css
#	deleted:    skins/larry/images/addcontact.png
#	deleted:    skins/larry/images/ajaxloader.gif
#	deleted:    skins/larry/images/ajaxloader_dark.gif
#	deleted:    skins/larry/images/buttons.png
#	deleted:    skins/larry/images/contactgroup.png
#	deleted:    skins/larry/images/contactpic.png
#	deleted:    skins/larry/images/contactpic_32px.png
#	deleted:    skins/larry/images/contactpic_48px.png
#	deleted:    skins/larry/images/favicon.ico
#	deleted:    skins/larry/images/filedrop.png
#	deleted:    skins/larry/images/filetypes.png
#	deleted:    skins/larry/images/googiespell/change_lang.gif
#	deleted:    skins/larry/images/googiespell/indicator.gif
#	deleted:    skins/larry/images/googiespell/ok.gif
#	deleted:    skins/larry/images/googiespell/spellc.gif
#	deleted:    skins/larry/images/listicons.png
#	deleted:    skins/larry/images/messages.png
#	deleted:    skins/larry/images/messages_dark.png
#	deleted:    skins/larry/images/overflowshadow.png
#	deleted:    skins/larry/images/quota.png
#	deleted:    skins/larry/images/roundcube_logo.png
#	deleted:    skins/larry/images/selector.png
#	deleted:    skins/larry/images/splitter.png
#	deleted:    skins/larry/images/watermark.jpg
#	deleted:    skins/larry/includes/footer.html
#	deleted:    skins/larry/includes/header.html
#	deleted:    skins/larry/includes/links.html
#	deleted:    skins/larry/includes/mailtoolbar.html
#	deleted:    skins/larry/includes/settingstabs.html
#	deleted:    skins/larry/mail.css
#	deleted:    skins/larry/meta.json
#	deleted:    skins/larry/print.css
#	deleted:    skins/larry/settings.css
#	deleted:    skins/larry/styles.css
#	deleted:    skins/larry/templates/about.html
#	deleted:    skins/larry/templates/addressbook.html
#	deleted:    skins/larry/templates/bounce.html
#	deleted:    skins/larry/templates/compose.html
#	deleted:    skins/larry/templates/contact.html
#	deleted:    skins/larry/templates/contactedit.html
#	deleted:    skins/larry/templates/contactprint.html
#	deleted:    skins/larry/templates/contactsearch.html
#	deleted:    skins/larry/templates/error.html
#	deleted:    skins/larry/templates/folderedit.html
#	deleted:    skins/larry/templates/folders.html
#	deleted:    skins/larry/templates/identities.html
#	deleted:    skins/larry/templates/identityedit.html
#	deleted:    skins/larry/templates/importcontacts.html
#	deleted:    skins/larry/templates/login.html
#	deleted:    skins/larry/templates/mail.html
#	deleted:    skins/larry/templates/message.html
#	deleted:    skins/larry/templates/messageerror.html
#	deleted:    skins/larry/templates/messagepart.html
#	deleted:    skins/larry/templates/messagepreview.html
#	deleted:    skins/larry/templates/messageprint.html
#	deleted:    skins/larry/templates/plugin.html
#	deleted:    skins/larry/templates/responseedit.html
#	deleted:    skins/larry/templates/responses.html
#	deleted:    skins/larry/templates/settings.html
#	deleted:    skins/larry/templates/settingsedit.html
#	deleted:    skins/larry/thumbnail.png
#	deleted:    skins/larry/ui.js
#	deleted:    skins/larry/watermark.html
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