Remove unused code behind USE(PLATFORM_TEXT_TRACK_MENU)

Source/core/html/track/TextTrack.h

Index: Source/core/html/track/TextTrack.h
diff --git a/Source/core/html/track/TextTrack.h b/Source/core/html/track/TextTrack.h
index ba8734ffed36fda01e420d308ffe722fa48e661b..767c2f9b810a469f3ae4354342310c765359fc56 100644
--- a/Source/core/html/track/TextTrack.h
+++ b/Source/core/html/track/TextTrack.h
@@ -33,10 +33,6 @@
 #include <wtf/RefCounted.h>
 #include <wtf/text/WTFString.h>
 
-#if USE(PLATFORM_TEXT_TRACK_MENU)
-#include "core/platform/graphics/PlatformTextTrack.h"
-#endif
-
 namespace WebCore {
 
 class HTMLMediaElement;
@@ -59,11 +55,7 @@ public:
     virtual void textTrackRemoveCue(TextTrack*, PassRefPtr<TextTrackCue>) = 0;
 };
 
-class TextTrack : public TrackBase
-#if USE(PLATFORM_TEXT_TRACK_MENU)
-    , public PlatformTextTrackClient
-#endif
-    {
+class TextTrack : public TrackBase {
 public:
     static PassRefPtr<TextTrack> create(ScriptExecutionContext* context, TextTrackClient* client, const AtomicString& kind, const AtomicString& label, const AtomicString& language)
     {
@@ -145,10 +137,6 @@ public:
 
     void removeAllCues();
 
-#if USE(PLATFORM_TEXT_TRACK_MENU)
-    PassRefPtr<PlatformTextTrack> platformTextTrack();
-#endif
-
 protected:
     TextTrack(ScriptExecutionContext*, TextTrackClient*, const AtomicString& kind, const AtomicString& label, const AtomicString& language, TextTrackType);
 #if ENABLE(WEBVTT_REGIONS)
@@ -164,12 +152,6 @@ private:
     RefPtr<TextTrackRegionList> m_regions;
 #endif
 
-#if USE(PLATFORM_TEXT_TRACK_MENU)
-    virtual TextTrack* publicTrack() OVERRIDE { return this; }
-
-    RefPtr<PlatformTextTrack> m_platformTextTrack;
-#endif
-
     TextTrackCueList* ensureTextTrackCueList();
 
     HTMLMediaElement* m_mediaElement;