Revert "Merge branch 'clarify-community-edition-can-have-support' into 'main'"

The change from !765 (merged) was not run through Support or Sales and requires some more thought and preparation.

1. A license is used as a proof of support entitlement, see https://about.gitlab.com/support/managing-support-contacts/#For%20Self-managed%20Users. Strict cloud licensing means that offline license files aren't generated without sales approval.
2. Verifying license compliance and calculating true-ups for Sales is not possible on CE.
3. https://about.gitlab.com/support/statement-of-support/#free-and-community-edition-users needs to be updated as well: one of the checks we do in Support is to verify they're running -ee packages. This change breaks that assumption.

I think this change is supportable, but there are enough other teams involved that this needs some prep.

• I, the Assignee, have run Axe Devtools on any updated pages, and fixed the relevant accessibility issues.
• These changes meet a specific OKR or item in our Quarterly Plan.
• These changes work on both Safari and Chrome.
• These changes have been reviewed for Visual Quality Assurance and Functional Quality Assurance on Mobile, Desktop, and Tablet.
• These changes work with our Google Analytics and SEO tools.
• These changes have been documented as expected.
• Images are appropriately sized