if you reload your esp it will be gone. if it's taking up a name you want to use for the Editor ID, then change the deleted name to something else
I've reloaded...but I have a blank form with a "D"!

I always remove such dirty edits by going to the Data tab (where you load the plugins) select the plugin you want to clean and then click details. Then delete the unwanted forms there (set ignore flag) and then reload the plugin in the CK.
How you set the ignore flag?
When I hopen details it doesn't allow to interact with the list...there is a special key for that?
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Edited: I've found it! I only had to use the Delete key on it!
However...now the dirty edit is gone for good right?
Thanks,
Jashkar