Merge "delete HIDL adapters" am: 7b4cdf7452 am: 38a1d26975 am: b0d0e8d94e

Original change: https://android-review.googlesource.com/c/platform/system/libhidl/+/1877956

Change-Id: Ieec6db629cbb3afa119f2cdb0a780c6c53c66e53