Revert "Cancel gestures on launcher destroy"

Revert "Refactor SchedulerCallback implementation"

Revert submission 20555112-launcher-destroy-gestures

Reason for revert: causes test failures
Reverted Changes:
Ib43cdd597:Refactor SchedulerCallback implementation
Ia8e936e26:Cancel gestures on launcher destroy

Change-Id: I2199e39237b7c9fe25784b46e16960cd5f17c46c
11 files changed