FF: Remove "View Logs" link on the details page

[zackcl]

Describe the solution you'd like
The "View Logs" link on the Feature Flags details page should be removed.

Additional context
The original design intended for the "View Logs" link on the details page to open a modal that would display only the logs of the current feature flag, similar to the "Enrollment Time Logs" modal on the experiment details page. However, we decided to deprioritize this feature and instead display the logs globally on the existing Logs page. The "View Logs" link and modal may be implemented later if a need for them arises.

Related issue: #1844