fix invalid read of notification popup after delete
fix invalid read of notification popup after delete

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