The slideshare integration was broken for quite a while already,
as slideshare doesn't seem to have a good replacement, we're
dropping it in the same manner as speakerdeck was dropped some
time ago. This means the special syntax now just renders a plain
link. This commit gets rid of the vimdo oembed API too which
allowed JSONP injection. Instead we're using the normal vimeo
video metadata API.
Co-authored-by: Philip Molares <philip.molares@udo.edu>
Signed-off-by: Erik Michelson <github@erik.michelson.eu>
3f520ea59a