Use default subtitle parsers in demo app

demo/src/main/java/com/google/android/exoplayer/demo/player/ExtractorRendererBuilder.java

@@ -23,7 +23,6 @@ import com.google.android.exoplayer.demo.player.DemoPlayer.RendererBuilderCallba
 import com.google.android.exoplayer.extractor.Extractor;
 import com.google.android.exoplayer.extractor.Extractor;
 import com.google.android.exoplayer.extractor.ExtractorSampleSource;
 import com.google.android.exoplayer.extractor.ExtractorSampleSource;
 import com.google.android.exoplayer.text.TextTrackRenderer;
 import com.google.android.exoplayer.text.TextTrackRenderer;
-import com.google.android.exoplayer.text.tx3g.Tx3gParser;
 import com.google.android.exoplayer.upstream.Allocator;
 import com.google.android.exoplayer.upstream.Allocator;
 import com.google.android.exoplayer.upstream.DataSource;
 import com.google.android.exoplayer.upstream.DataSource;
 import com.google.android.exoplayer.upstream.DefaultAllocator;
 import com.google.android.exoplayer.upstream.DefaultAllocator;
@@ -70,7 +69,7 @@ public class ExtractorRendererBuilder implements RendererBuilder {
     MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
     MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
         null, true, player.getMainHandler(), player);
         null, true, player.getMainHandler(), player);
     TrackRenderer textRenderer = new TextTrackRenderer(sampleSource, player,
     TrackRenderer textRenderer = new TextTrackRenderer(sampleSource, player,
-        player.getMainHandler().getLooper(), new Tx3gParser());
+        player.getMainHandler().getLooper());
 
 
     // Invoke the callback.
     // Invoke the callback.
     TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
     TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];