I apologize, but I couldn't find specific information in the provided knowledge sources about removing users from warehouse connector fail notifications. The documents don't contain enough details to directly answer your question about this particular feature.
However, I can provide some general information about user management in Mixpanel that might be helpful:
According to the Roles & Permissions documentation, you can remove users from projects, which might affect their access to certain notifications:
1. Go to "Project Settings"
2. Click on "Project Users"
3. Find the user(s) you want to remove and click the checkbox next to their name
4. Click the "Delete" button that appears at the top of the table
Keep in mind that this process removes the user from the project entirely, not just from specific notifications. If you need more specific information about managing warehouse connector fail notifications, I recommend contacting Mixpanel support directly or checking their most up-to-date documentation.