Remove TODO bullet point for authorship

I'm the author of this PEP. Sergey and Raymond shouldn't be pestered over it. They are in the appropriate 'Thanks' section.

Author: jb2170

peps/pep-0786.rst

@@ -344,7 +344,6 @@ TODO AND REMOVE BEFORE MERGE
 
 * Format all lines to ~80 characters. I've left this formatting until we're happy with the contents.
 * RFC 2119 Style Specification? After all is said and done here.
-* Add Sergey and Raymond to the authors field, or is Thanks enough?
 * Give a good example of non-hardware aware use of modular arithmetic formatting, my brain has gone blank...