Switch forwarded-headers e2e to use gorequest.
Switch forwarded-headers e2e to use gorequest.

canhnt/ingress,kubernetes/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,caicloud/ingress,aledbf/ingress-nginx,aledbf/ingress-nginx,caicloud/ingress,canhnt/ingress,canhnt/ingress,kubernetes/ingress-nginx,caicloud/ingress,aledbf/ingress-nginx,kubernetes/ingress-nginx,aledbf/ingress-nginx,kubernetes/ingress-nginx,caicloud/ingress