Fix too-long TAG + remove unused methods.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=122426685

library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java

@@ -363,14 +363,6 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
     return codec == null && format != null;
   }
 
-  protected final boolean codecInitialized() {
-    return codec != null;
-  }
-
-  protected final boolean haveFormat() {
-    return format != null;
-  }
-
   @Override
   protected void onDisabled() {
     format = null;

library/src/main/java/com/google/android/exoplayer/MediaCodecVideoTrackRenderer.java

@@ -49,7 +49,7 @@ public class MediaCodecVideoTrackRenderer extends MediaCodecTrackRenderer {
     // No extra methods
   }
 
-  private static final String TAG = "MediaCodecVideoTrackRenderer";
+  private static final String TAG = "MediaCodecVideoRenderer";
 
   // TODO: Use MediaFormat constants if these get exposed through the API. See
   // [Internal: b/14127601].