Merge "libmedia: Remove unused dependency on libprocessgroup" into main am: 3a82c7b0

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3143003



Change-Id: I02a39a50c02a9f7f60811f4957140bf8f52538c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>