Merge "Discard dead MmTelFeature Binder Instances" am: 9e1009dd55

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1575999

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia3a57c891b4be0d45d7b7686cc85bd8a01512ddb