Revert "frameworks: Custom System Animations WIP"

This reverts commit 388e86ce15ca0f83a85e1c825f9fdb09888f3774.
frameworks: Custom System Animations WIP

Do not merge

Allows setting of some system animations.

Current List:

Activity Open
Activity Close
Task Open
Task Close
Task Move to front
Task Move to back

duration controls

Change-Id: Id360abe158d36ab85c1c0d0103428d4a8867e70c