edx-platform refactor: let openedx-learning handle content library asset logic

Description

Refactor the code to let openedx-learning handle the content library asset upload logic.

Closes https://github.com/openedx/openedx-learning/issues/241

Depends on: https://github.com/openedx/openedx-learning/pull/248

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Oct 25 '24 12:10 Ian2012

Thanks for the pull request, @Ian2012!

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Oct 25 '24 12:10 openedx-webhooks

2U Release Notice: This PR has been deployed to the edX staging environment in preparation for a release to production.