refactor(exo): remove obsolete FFmpeg mode setting

Verification: git diff --check; no obsolete FFmpeg mode references outside audit record; real Exo FFmpeg renderer references retained; Mobile/Leanback Java compilation passed; focused Mobile/Leanback PlayerManagerTest, PlayerDisplaySettingSyncTest, and PlayerSettingTest passed; unrelated VideoActivityLayoutTest leanbackSpeedBoostReleaseIsGuarded failure recorded in task document

Task-Guard: E-ROLLBACK-EXO
This commit is contained in:
Silent1566 2026-09-12 15:15:36 +08:00
commit c2dcf52b56
18 changed files with 14 additions and 580 deletions