[gnome-calendar] Revert "edit-dialog: add `calendars-list` styleclass to sources_popover."

[Lapo Calamandrei <lapo src gnome org>]

commit fba57ee1aff00b3d92fdb15d0cada82d61ad2e60
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Fri Jul 8 21:31:42 2016 +0200

    Revert "edit-dialog: add `calendars-list` styleclass to sources_popover."
    
    This reverts commit 126d6145f26cc17afc76e51db7d23ea469763134, since
    a proper hacker (Georges) added the class where it makes more
    sense.

 data/ui/edit-dialog.ui |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/data/ui/edit-dialog.ui b/data/ui/edit-dialog.ui
index 5b32639..e26e54a 100644
--- a/data/ui/edit-dialog.ui
+++ b/data/ui/edit-dialog.ui
@@ -456,9 +456,6 @@
     </child>
   </template>
   <object class="GtkPopover" id="sources_popover">
-  <style>
-    <class name="calendars-list"/>
-  </style>
   </object>
   <object class="GtkPopoverMenu" id="alarms_popover">
     <property name="can_focus">False</property>