Merge "Camera: Remove an unused variable mCameraMuteChanged in Camera3Device"...

Merge "Camera: Remove an unused variable mCameraMuteChanged in Camera3Device" into aosp-main-future am: e8c706c0 am: e3f48ace

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/24723665



Change-Id: Ib94db5bd9f093363b462b5faa624f2e53fbc9412
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>