gst_private: Fix duplicate definition
gst_private: Fix duplicate definition

shelsonjava/gstreamer,surround-io/gstreamer,mparis/gstreamer,jpxiong/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,Lachann/gstreamer,centricular/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,surround-io/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,jpakkane/gstreamer,mparis/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,shelsonjava/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,centricular/gstreamer,centricular/gstreamer,krichter722/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,surround-io/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,Lachann/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,mparis/gstreamer,krichter722/gstreamer,krichter722/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,surround-io/gstreamer