chore: remove unused declarations (#3414)

Co-authored-by: olivier <olivier.bouillet@ifeelsmart.com>

android/src/main/java/com/brentvatne/exoplayer/ExoPlayerView.java

@@ -278,55 +278,10 @@ public final class ExoPlayerView extends FrameLayout implements AdViewProvider {
             shutterView.setVisibility(INVISIBLE);
         }
 
-        @Override
-        public void onIsLoadingChanged(boolean isLoading) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onPlaybackStateChanged(int playbackState) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onPlayWhenReadyChanged(boolean playWhenReady, int reason) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onPlayerError(PlaybackException e) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onPositionDiscontinuity(Player.PositionInfo oldPosition, Player.PositionInfo newPosition, int reason) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onTimelineChanged(Timeline timeline, int reason) {
-            // Do nothing.
-        }
-
         @Override
         public void onTracksChanged(Tracks tracks) {
             updateForCurrentTrackSelections();
         }
-
-        @Override
-        public void onPlaybackParametersChanged(PlaybackParameters params) {
-            // Do nothing
-        }
-
-        @Override
-        public void onShuffleModeEnabledChanged(boolean shuffleModeEnabled) {
-            // Do nothing.
-        }
-
-        @Override
-        public void onRepeatModeChanged(int repeatMode) {
-            // Do nothing.
-        }
     }
 
 }