This page has been replaced with an equivalent page in the authoring MFE
which has been on by default since Teak. This change removes the
ability to fallback to the old page using waffle flags.
BREAKING CHANGE: The `legacy_studio.course_outline` waffle flag will be removed
and the code will behave as if it's always set to `False`. Preventing
you from falling back to the old Course Outline page.
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