SDK / exoplayer

Removed move transformation for exoplayer2 audio package-info.java

https://github.com/google/ExoPlayer/commit/dda17db261758f7211ffa793ee9cc6fea842addb creation of audio/package-info.java introduced a copybara conflict with the exoplayer2/audio/package-info.java move transformation in copy.bara.sky. Solution was to remove original package-info-common-audio.java and the move transformation as https://github.com/google/ExoPlayer/commit/dda17db261758f7211ffa793ee9cc6fea842addb now covers it.

Tested with a copybara push to exoplayer github

PiperOrigin-RevId: 485329674
(cherry picked from commit 972e169b)