Remove NativeWindow and unused DVR functions

1/ Remove the NativeWindow-backed DVR DisplaySurface implementation.
2/ Unused API such as: dvrCreateDisplaySurface and friends are removed.

Bug: 36033302
Test: Built system, ran basicvr, ran particles on Marlin. Also updated
graphics_app_tests to stop testing deprecated API.

Change-Id: I6ea6063c56fabacddcc301bc91567cc1b3f5d67e