How can we remove internal funding from an award?

Summary:

We have an award where the internal funding has been consumed, but users can still charge to it.

Content (required):

Internal funding for the award has been consumed, now we need to stop charging to it but users still have the ability to select it in the drop down. How do we remove the internal funding?

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):