Remove the WaitEvent added in Tap and Drag.

As the delay is added as WaitEvent, throttle time is applied after
the WaitEvent. This cause problem for Tap and Drag. The thorrle time
is then inserted between ACTION_DOWN and ACTION_UP, or ACTION_DOWN
and ACTION_MOVE. This broke the two actions.

Change-Id: I5a122d6cb3d99e38d9442c3de50e0360652c4baf
1 file changed