Remove handling of EV_MSC/MSC_TIMESTAMP in Input

MSC_TIMESTAMP is not being utilized anymore to report timestamps from
drivers. MSC_TIMESTAMP and all other utilizations of it are removed.

Bug: 119840121
Test: No crashes happening after building and running on flame
Change-Id: I4d9bec3d763bee3583c351b4240f145a21711e33
9 files changed