remove wrong comment

rpg/enzyme.py

@@ -415,7 +415,6 @@ def user_creation_enzyme_non_interactive(all_enzymes, name_new_enz, rules, excep
     # Add it to known names
     all_name_enz.add(new_enz.name)
 
-# Not tested
 def delete_enzyme(all_enzymes, name):
     """ Delete an enzyme from user file