Remove IPlayer.h, use AIDL generated interface.

Part of migrating our binder interfaces to AIDL, this removes the
IPlayer implementation and uses the new aidl generated binder interface
library.

Test: run cts --module CtsMediaTestCases
Bug: 64223827

Change-Id: I5ded5e15681165503d6e2f5a24233add79373f9c
3 files changed