LE audio offload plan to fully support on aidl or temporal HAL 2.2. Remove it in HAL 2.1 to make the compatible work easier
Bug: 197296692
Bug: 150670922
Test: HAL 2.1/2.2 work for A2DP software/hardware media, and LE audio
software media/voip call
Change-Id: Icc68bea357d2ee0427826e0c20888399662e9bcb