Revert "Revert "Revert "Ensure MediaSession is ONLY made active when routed to wired headset."""

This reverts commit 55793f0c8a98b30a2142bc07904f2db2ecdd7220.

Reason for revert: b/283204143
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:4e5131e61cebe82fcf03d203649a8848c25c57ce)
Merged-In: I6c33060823b8d7d4353cdb8fee98e3d31be93ac5
Change-Id: I6c33060823b8d7d4353cdb8fee98e3d31be93ac5
2 files changed