Merge "Delete bluetooth.h" am: 33d6b957e5

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/2517798

Change-Id: I83c10e84578d5d190d2b3e9fc9e09914f98a9f81
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>