streamiddemux: Reset pad counter after removing all pads
streamiddemux: Reset pad counter after removing all pads

shelsonjava/gstreamer,krichter722/gstreamer,centricular/gstreamer,mparis/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,StreamUtils/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,krichter722/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,mparis/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,StreamUtils/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,mparis/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,centricular/gstreamer,jpxiong/gstreamer