am 16d171b1: Merge "code cleanup. some unused import statement, local variabls, private members and static constants removed form classes in com.android.bluetooth/pbap package."

* commit '16d171b1ba7bd2b74c15b9f4d0289de84117cbb5':
  code cleanup. some unused import statement, local variabls, private members and static constants removed form classes in com.android.bluetooth/pbap package.