[gnome-calendar/calendar-management] sources-dialog: removed unused popover

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 6239f160151386efaabdff6778d9315d3f8fa813
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Jan 14 01:00:09 2015 -0200

    sources-dialog: removed unused popover

 data/ui/source-manager-dialog.ui |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/data/ui/source-manager-dialog.ui b/data/ui/source-manager-dialog.ui
index e49096f..a070094 100644
--- a/data/ui/source-manager-dialog.ui
+++ b/data/ui/source-manager-dialog.ui
@@ -283,12 +283,4 @@
       </object>
     </child>
   </template>
-  <object class="GtkPopover" id="popover">
-    <property name="visible">True</property>
-    <property name="can_focus">False</property>
-    <property name="relative_to">add_button</property>
-    <child>
-      <placeholder/>
-    </child>
-  </object>
 </interface>