Revert "Add: feature explanition"
Revert "Add: feature explanition"

This reverts commit 976c3b050013ce8f758c5bdcf6335e5261be072f.

visualing/VisualingVideoPlayer,visualing/VisualingVideoPlayer,lipangit/JiaoZiVideoPlayer,lipangit/JiaoZiVideoPlayer,lipangit/jiecaovideoplayer