Revert "Player: Finer a/v sync adjustments"

This reverts commit f8d72280ccb3ec28391182cf6eaaf20c9c87ae4f.

(cherry picked from commit d08503e30ccaa188ae27dad49ab67c343881db87)
Revert "Player: Enable AVSync to recover quicker after a seek or program change"

This commit broke audio or frame rate change detection following a seek or channel change

This reverts commit 195eb07fb106fbabf164a1989860adcc132ab9d2.

(cherry picked from commit 0128796ef424552fb9af4c92c2ac05d2436b36b9)
Revert "TV UnpauseLiveTV calls tvchain->SwitchTo opposed to JumpTo to minimise visible disruption"

This commit broke LiveTV channel change

This reverts commit bfc6b9ed58029955d5a4230cad5851ed4848ed20.

(cherry picked from commit 0f11604dd8429c9b6be847703898e9d4a55bb86e)