Remove discontinued process from Tips page

Why is this change being made?

Removes namesquatting requests for internal tea... (gitlab-com/www-gitlab-com!124907 - merged) & Deprecate internal vanity namesquatting process (gitlab-com/support/support-team-meta#5170 - closed) discontinued that process. @lyle It should also be removed from here, I guess?

Related to Update "gitlab.com/profile" links on Tips page (!3339 - merged)

Author and Reviewer Checklist

Please verify the check list and ensure to tick them off before the MR is merged.

• Provided a concise title for this Merge Request (MR)
• Added a description to this MR explaining the reasons for the proposed change, per say why, not just what
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