SF: Stop collecting animation FrameStats

[1] deprecated the UiAutomation API, and [2] removed the CTS tests. The
animation flag is on its way out, and the refresh period was inaccurate
anyway.

[1] I35076bb5a3d8445aaa0eab05221cdc228834a6d6
[2] Ia8220d1cfae7b3dbef8a3d42773880ca95c38404

Bug: 185535769
Test: Build
Change-Id: I078a20550beb9296ea31eb3408f6060b421459f5