mcp: Remove the usage of getMainThreadHandler()

Bug: 150670922
Bug: 197723745
Tag: #feature
Test: atest MediaControlGattServiceTest McpServiceTest
Sponsor: jpawlowski@
Merged-In: Ia34dc1e1a4960774eef8d08c4e2c08a25ffffe51
Change-Id: Ia34dc1e1a4960774eef8d08c4e2c08a25ffffe51
3 files changed
tree: 55f5fdb3522a21d3cf830ece0ac836aa22131833
  1. android/