fix: remove double edit buttons on unit outline [teak]

[rpenido]

Description

Backport of #36770

Additional Information

• Relates to Double Edit Buttons on Unit Course Authoring Page frontend-app-authoring#1986

Testing Instructions

Check #36770

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[pomegranited]

👍 Thanks @rpenido !

• I tested this on my Teak devstack
• I read the commit to check that it matches the original merged #36770