Remove unneeded code
Remove unneeded code

Now that PublicShareAuth is based in Embedded there is no need to
explicitly show the videos and screens when the sidebar is open again,
as they will not have been hidden.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed