Geo: Fix Replication Details nav links for enabled replicables

What does this MR do?

Even if a replicator is enabled, the Replication Details nav link is not shown (if this feature flag is not enabled).

We forgot to remove this old feature flag check when we switched to using an individual feature flag per replicator.

Screenshots (strongly suggested)

Before	After

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.