Merge pull request #585 from rackspace/583-take2

remove another errant AuthenticatedHeaders call
diff --git a/rackspace/objectstorage/v1/cdncontainers/requests.go b/rackspace/objectstorage/v1/cdncontainers/requests.go
index 6acebb0..e85e17a 100644
--- a/rackspace/objectstorage/v1/cdncontainers/requests.go
+++ b/rackspace/objectstorage/v1/cdncontainers/requests.go
@@ -35,7 +35,7 @@
 // Enable is a function that enables/disables a CDN container.
 func Enable(c *gophercloud.ServiceClient, containerName string, opts EnableOptsBuilder) EnableResult {
 	var res EnableResult
-	h := c.AuthenticatedHeaders()
+	h := make(map[string]string)
 
 	if opts != nil {
 		headers, err := opts.ToCDNContainerEnableMap()