Hi Rakesh,

The impacts are unknown and impact could be huge, and it is not advisable to do that. Instead of that you can follow the below doc to manage this situation from a different perspective

https://docs.servicenow.com/en-US/bundle/sandiego-employee-service-management/page/product/universal-request/task/remove-admin-role-ur.html

Please mark my answer Correct/Helpful if this resolved your query