* minor: Remove unused AppearanceTableMapper as pointed out by jonc in http://opensimulator.org/mantis/view.php?id=2843

OpenSim/Region/Environment/Modules/Avatar/Friends/FriendsModule.cs

@@ -24,6 +24,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
 using System;
 using System.Collections;
 using System.Collections.Generic;