gluster: fix repeated words while removing user role or permission

Added new entries in AuditLogMessages.properties
for add or remove user system permission.

Change-Id: I3ec4962877168768879e45b10aa65d9416f54831
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1031901
Signed-off-by: Timothy Asir <tjeyasin@redhat.com>