input/es_out: add function EsDeleteInfo
input/es_out: add function EsDeleteInfo

This helper function, as its name implies, is used to remove information
associated with the passed ES.

Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc