Revert "TouchEvent (4/n) Firing event when setting mInTouchMode"

This reverts commit 4eecba7daea5100d69bf8c2d3efbbba222dc8cf5.

Reason for revert: May have broken com.android.system.ui tests (b/201320240)

Change-Id: Ib5bdbd2804a46e1f4c0cfbeec70fa0db7fdadaa0
Bug: 201320240
Bug: 193718270
3 files changed