Remove ineffective copybara strip directive
Remove ineffective copybara strip directive

PiperOrigin-RevId: 274161845

google/ExoPlayer,google/ExoPlayer,superbderrick/ExoPlayer,amzn/exoplayer-amazon-port,google/ExoPlayer,ened/ExoPlayer,amzn/exoplayer-amazon-port,androidx/media,amzn/exoplayer-amazon-port,androidx/media,ened/ExoPlayer,superbderrick/ExoPlayer,androidx/media,superbderrick/ExoPlayer,stari4ek/ExoPlayer,stari4ek/ExoPlayer,stari4ek/ExoPlayer,ened/ExoPlayer