Remove protected broadcast from preferred tty mode am: b49a7d7b50 am: b482784444 am: 48ad5cf9b6

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/12673457

Change-Id: If94bb11ebe98acae3d3dd0d5d091f0d920453fd1