diff --git a/acceptance/tools/tools.go b/acceptance/tools/tools.go
index 1ff2d5a..bca4574 100644
--- a/acceptance/tools/tools.go
+++ b/acceptance/tools/tools.go
@@ -6,34 +6,12 @@
 	"crypto/rand"
 	"errors"
 	mrand "math/rand"
-	"os"
 	"time"
-
-	"github.com/gophercloud/gophercloud"
 )
 
 // ErrTimeout is returned if WaitFor takes longer than 300 second to happen.
 var ErrTimeout = errors.New("Timed out")
 
-// OnlyRS overrides the default Gophercloud behavior of using OS_-prefixed environment variables
-// if RS_ variables aren't present. Otherwise, they'll stomp over each other here in the acceptance
-// tests, where you need to have both defined.
-func OnlyRS(original gophercloud.AuthOptions) gophercloud.AuthOptions {
-	if os.Getenv("RS_AUTH_URL") == "" {
-		original.IdentityEndpoint = ""
-	}
-	if os.Getenv("RS_USERNAME") == "" {
-		original.Username = ""
-	}
-	if os.Getenv("RS_PASSWORD") == "" {
-		original.Password = ""
-	}
-	if os.Getenv("RS_API_KEY") == "" {
-		original.APIKey = ""
-	}
-	return original
-}
-
 // WaitFor polls a predicate function once per second to wait for a certain state to arrive.
 func WaitFor(predicate func() (bool, error)) error {
 	for i := 0; i < 300; i++ {