remove test for verifing video state requests are gated

Telecom is not longer requiring clients to add the
CallAttributes#SUPPORTS_VIDEO_CALLING in order to change the video state.
This is due to issues in the Core-Telecom jetpack layer.

Flag: com.android.server.telecom.flags.transactional_video_state
Fixes: 335887238 (remap CallAttributes CallType in addCall)
Fixes: 325320195 (do not gate setVideoState with capability)
Test:  4 new unit tests, removed 1 CTS test
Change-Id: Ic06ea9e1c106fbd8c6ebea2bc12b2f21b4af7a36