Removes a method from a generic function. This operation modifies the generic-function.
If generic-function is sealed, or if method is in a sealed domain of generic-function, then an error of type <sealed-object-error> is signaled.
| generic-function | An instance of <generic-function>. |
| method | An instance of <method>. |
| method | An instance of <method>. The same method passed in as an argument. |