[automerger skipped] Remove unecessary locking to avoid dead lock. am: 93d5117cf5 am: f60011dad1 -s ours

am skip reason: skipped by user mpgroover

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/13319433

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I31bfd94e137440220041c46dd54f43c87571f4a9