webadmin: remove invalid css pointer type

- Removed declarations of extra pointer: hand declarations from
styles and definitions as they are only there to support older
versions of IE, which we no longer support.

Change-Id: I00138201d293ecfe416d0ab9448075c4e5a3a194
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=838991
Signed-off-by: Alexander Wels <awels@redhat.com>