Undo code in gengraphs to make csv files unique

This was creating a lot more issues than I expected. I'm undoing the change, and changing the names of the .graph files that led to the non-unique csv files. 

The duplicate files were found with an upcoming patch that will ensure we don't run into this again: 323fb989b8ca2711fb15f1c5811d38a9eb8137f5