RecentsTV : Remove all Recents TV Code

This patch will remove the Recents TV Code from SystemUI.

Test: To test this removes the Recents Feature and has no
side effects, try to launch recents with long-press HOME. This
should result in launching the phone version of recents.

BUG: 36035359
Change-Id: I9026b480968575ce08e1ce344512f168fdc5fe87