Remove current repo link to docs for enterprise users

[AJKemps]

linear

Test plan

Current state causing confusion. When an Ent user has a project open locally that isn't available remotely, they get this "not yet available" CTA that links out to a docs page about code host configuration, which is causing lots of questions to customer admins that are unnecessary

After changes for Ent User with a local project that is available remotely

After changes for Ent User with a local project that is not available remotely

[dominiccooney]

This was added because there was a concern that Teams users need a call to action to index repositories, so I would either:

• Decide we don't want the CTA at all, and revert the change that added it. Or,
• Decide we do want the CTA for Teams, but not Enterprise. In that case you should not use isEnterpriseUser but instead something which calls isWorkspaceInstance(authStatus.endpoint). Or,
• Decide that we want the callout for both but improve the docs.

As-is this change isn't good because we're carrying around the code for this CTA which is never shown.

[kalanchan]

Decide that we want the callout for both but improve the docs.

My vote is for this, without the CTA users get confused on why they don't have indexing. I'll follow up with updating a page about indexing itself and what it means to have repo context.

I don't think we should be removing the ability to @ mention the current repo, as this also affects enterprise starter customers