Messaging: All contacts: Remove space for sections

* Due to the sections not working anymore since we removed the duplicate
  numbers, we are left with a rather large empty space left of the
  contacts
* Disable sectioning to make it look properly again

Change-Id: Iff1849b80d70269933708e5440809c657f0d70d9

src/com/android/messaging/ui/contact/AllContactsListViewHolder.java

@@ -27,7 +27,7 @@ import com.android.messaging.ui.contact.ContactListItemView.HostInterface;
 public class AllContactsListViewHolder extends CustomHeaderPagerListViewHolder {
     public AllContactsListViewHolder(final Context context, final HostInterface clivHostInterface) {
         super(context, new ContactListAdapter(context, null, clivHostInterface,
-                true /* needAlphabetHeader */));
+                false /* needAlphabetHeader */));
     }
 
     @Override