Remove "side-bar-ellipsize-mode" setting.

I was wrong: ellipsize setting got renamed, not removed.  Remove it.

data/org.gnome.evolution.mail.gschema.xml.in

@@ -29,14 +29,6 @@
     <value nick='always'    value='2'/>
   </enum>
 
-  <!-- Keep this synchronized with PangoEllipsizeMode. -->
-  <enum id="org.gnome.evolution.mail.EllipsizeMode">
-    <value nick='none'   value='0'/>
-    <value nick='start'  value='1'/>
-    <value nick='middle' value='2'/>
-    <value nick='end'    value='3'/>
-  </enum>
-
   <schema gettext-domain="evolution" id="org.gnome.evolution.mail" path="/org/gnome/evolution/mail/">
     <key name="prompt-check-if-default-mailer" type="b">
       <default>true</default>
@@ -178,10 +170,6 @@
       <_summary>Show image animations</_summary>
       <_description>Enable animated images in HTML mail. Many users find animated images annoying and prefer to see a static image instead.</_description>
     </key>
-    <key name="side-bar-ellipsize-mode" enum="org.gnome.evolution.mail.EllipsizeMode">
-      <default>'none'</default>
-      <_summary>Ellipsize mode for folder names in side bar</_summary>
-    </key>
     <key name="side-bar-search" type="b">
       <default>true</default>
       <_summary>Enable or disable type ahead search feature</_summary>

modules/mail/e-mail-shell-sidebar.c

@@ -175,11 +175,6 @@ mail_shell_sidebar_constructed (GObject *object)
 
 	settings = g_settings_new ("org.gnome.evolution.mail");
 
-	g_settings_bind (
-		settings, "side-bar-ellipsize-mode",
-		widget, "ellipsize",
-		G_SETTINGS_BIND_GET);
-
 	g_settings_bind (
 		settings, "side-bar-search",
 		widget, "enable-search",