Merge "Revert^3 "VP9: Synthesize CSD from frame header"" into main am: ff8dca48e4 am: 69f5cc62d5

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3027404

Change-Id: Ic3518d409fc3b342677f502384c6f7e8e2ad4897
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>