Remove a duplicate method in camera compat.

Also do a few smaller automatic cleanups.

Flag: com.android.window.flags.enable_camera_compat_for_desktop_windowing
Fixes: 371176245
Test: atest WmTests:CameraCompatFreeformPolicyTests
Change-Id: I9890ffdb6e8dbb87d099c95e1a3842c31dc18a8b
3 files changed