Remove unused btm_read_remote_version_complete_raw am: c6dc20f4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/18571946



Change-Id: Iee530b2a6cfccbdb8105f5b0a345e802b067d106
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>