Merge changes from topic "QP1A.190122.001" into q-keystone-qcom-dev

* changes:
  Revert "Metrics: Add Bluetooth address obfuscator in Java"
  Revert "Metrics: Use byte[] instead of ByteString in AdapterService.obfuscateAddress"
  Revert "Metrics: Return empty array for null address in obfuscateAddress()"
  Merge QP1A.190122.001