Merge "Clean up: remove LE audio hardware offload in Bluetooth audio HAL 2.1" am: 297d2f1c44 am: 756676341a

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1917160

Change-Id: I3259071c6acad9abef52dbdbf856ceb9783d8c04