Remove redundant include, now that NuHTTPDataSource.h is no more.

Change-Id: I7bed503ba341b5ea3b7a3cac7aa2a1f349c8ed03
diff --git a/libvideoeditor/lvpp/PreviewPlayer.h b/libvideoeditor/lvpp/PreviewPlayer.h
index 55a8259..74a09eb 100755
--- a/libvideoeditor/lvpp/PreviewPlayer.h
+++ b/libvideoeditor/lvpp/PreviewPlayer.h
@@ -18,7 +18,6 @@
 
 #define PREVIEW_PLAYER_H_
 
-#include "NuHTTPDataSource.h"
 #include "TimedEventQueue.h"
 #include "VideoEditorAudioPlayer.h"