private: remove left-over comment
private: remove left-over comment

The caps are saved in the registry.

lovebug356/gstreamer,krichter722/gstreamer,lubosz/gstreamer,StreamUtils/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,mparis/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,lovebug356/gstreamer,lovebug356/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,jpakkane/gstreamer,mparis/gstreamer,ensonic/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,surround-io/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,krieger-od/gstreamer,surround-io/gstreamer,krichter722/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,krieger-od/gstreamer,jpakkane/gstreamer,Lachann/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,centricular/gstreamer,cfoch/gstreamer,surround-io/gstreamer,centricular/gstreamer,cablelabs/gstreamer,ensonic/gstreamer,jpakkane/gstreamer,mparis/gstreamer,jpxiong/gstreamer,Lachann/gstreamer,krieger-od/gstreamer,lovebug356/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,cablelabs/gstreamer,Lachann/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,jpakkane/gstreamer,shelsonjava/gstreamer,Lachann/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,ensonic/gstreamer,mparis/gstreamer,lubosz/gstreamer,lubosz/gstreamer,centricular/gstreamer,cfoch/gstreamer,krieger-od/gstreamer,surround-io/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,Lachann/gstreamer,centricular/gstreamer,shelsonjava/gstreamer