Remove pointless #imports from .m and .h files

This was done with a brute-force approach, ensuring no additional
warnings from GCC 4.9 under x86_64.

UI/Contacts/UIxContactsUserRightsEditor.m

@@ -18,12 +18,9 @@
  * Boston, MA 02111-1307, USA.
  */
 
-#import <Foundation/NSArray.h>
 #import <Foundation/NSDictionary.h>
-#import <Foundation/NSEnumerator.h>
 #import <Foundation/NSValue.h>
 
-#import <NGObjWeb/WORequest.h>
 
 #import <SoObjects/SOGo/SOGoPermissions.h>