Fix eap editor segfault by checking to see that the tile exists before trying to remove it.
Fix eap editor segfault by checking to see that the tile exists before trying to remove it.


SVN revision: 19515

tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,rvandegrift/e,rvandegrift/e,FlorentRevest/Enlightenment,tasn/enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment