Update remove duplicate envars
Update remove duplicate envars

steelbrick/CumulusCI,SalesforceFoundation/CumulusCI,e02d96ec16/CumulusCI,ddrezga/CumulusCI,motivislearning/CumulusCI,SalesforceFoundation/CumulusCI,Joble/CumulusCI,cdcarter/CumulusCI,e02d96ec16/CumulusCI,roundcorner-products/CumulusCI,roundcorner-products/CumulusCI,motivislearning/CumulusCI,steelbrick/CumulusCI,ddrezga/CumulusCI