There are other annotations features still in the platform but this one
is the one that works with an annotations server that was specialized
and not generally used by most instances of the platform.
The initial PR to remove this was made by 'lduarte1991' and can be found
here: https://github.com/edx/edx-platform/pull/17299
The work done based on the squashed commits:
removed advanced modules config for annotations
remove module files and config for annotations
remove js and css files related to annotations, under ova folders
removed js and css annotator file configs for cms and lms
remove template html files for annotations
removed annotations options from static html book
Added back some files that were originally marked "for OVA" but others used as per acceptance tests
Added back css file configs incorrectly marked as ova
Remove annotation related advanced settings from test.
Correct hls require.js pathing.
a9b61c06d3