[automerger skipped] Remove callback upon MediaSession#release am: 3cfa79c53c am: b68a7b7822 am: 72fab92867 -s ours am: 8a3bf13aa7 -s ours

am skip reason: Merged-In I112fa5df6aafdb2774ed65c2d08ab1eb680e6b47 with SHA-1 3cfa79c53c is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24464032

Change-Id: I7d0c2aa6bc18790568f3744b7eb11657d2765286
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>