don't duplicate rtfree actions taken by rtrequest1() in rtdeletemsg()
don't duplicate rtfree actions taken by rtrequest1() in rtdeletemsg()

testing sthen@
ok sthen@ henning@ dlg@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars