Can't Delete Function (again)

Can't Delete Function (again)

I encountered another case where I cannot delete a function.  When I try to delete the function, it says:

Function cannot be deleted.
This function is referred in the following places.
Please remove the reference,then try deleting the function.

In action script-->


Notice, there is no name after:   "In action script-->"

The name of the function is:
GetPledgePayment

The name of my application is:
MyDB

I have given support access to the application.
Please access my application and delete the function for me.

I'm not sure how this is happening.  This time, if I recall correctly, I changed the parameters of the function, and after they changed, it reminded me to change the parameters in the function call I was using in a Formula field.  Instead of changing the formula, I deleted the Formula field, then recreated the field with the function call having the correct parameters.  Later, I deleted the Formula field a 2nd time, and when I tried to delete the function, I got the above message saying the function could not be deleted.

I downloaded the application as a .ds file, and searched the file and did not find any references to the function.

After you delete the function, if you are not able to recreate the problem, let me know and I'll see if I can determine the steps that will create the problem.
.
Thanks.