Use the correct `del` shorthand in mirage routes
Use the correct `del` shorthand in mirage routes

`delete` maybe probably never worked.

dartajax/frontend,dartajax/frontend,djvoa12/frontend,jrjohnson/frontend,djvoa12/frontend,thecoolestguy/frontend,thecoolestguy/frontend,ilios/frontend,jrjohnson/frontend,ilios/frontend