Merge "system/bta/av: Removed unused method bta_av_chk_2nd_start" into main am: 3f7adffa

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/3026443



Change-Id: Icbc305eb46d5bbce7ea6579d45c23c2c3f212d9e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>