We tried to delete the list in SharePoint 2013, we clicked on remove suddenly we got the error message like “The attempted operation is prohibited because it exceeds the list view threshold enforced by the administrator”.
Cause: As per the error message we identified that we have to change the list view threshold at Central Admin Level.
Open CentralAdmin->Manage webapplciations->Select the Particular web application (that you are getting the threshold error)->In the Top ribbon->Click on General Settings->Click on Resource Throttling .
In the first option we can able to see the List View Threshold default value is 5000, change the value as per your error, in my case I am changing to 25000, Click on ok.
Now we can able to delete list without any issues.