elm_gesture_layer.c: removed unnecessary assignment.
elm_gesture_layer.c: removed unnecessary assignment.

This fixes 'unused pointer value' warning which was spotted by coverity. CID 1039974.

tasn/elementary,rvandegrift/elementary,tasn/elementary,tasn/elementary,rvandegrift/elementary,FlorentRevest/Elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary,tasn/elementary,tasn/elementary,FlorentRevest/Elementary