Refactor OpenStack services to use default OkCodes
diff --git a/openstack/objectstorage/v1/objects/requests.go b/openstack/objectstorage/v1/objects/requests.go
index 30ea94c..b69b8dd 100644
--- a/openstack/objectstorage/v1/objects/requests.go
+++ b/openstack/objectstorage/v1/objects/requests.go
@@ -211,7 +211,6 @@
 	ropts := gophercloud.RequestOpts{
 		RawBody:     content,
 		MoreHeaders: h,
-		OkCodes:     []int{201, 202},
 	}
 
 	resp, err := c.Request("PUT", url, ropts)
@@ -310,9 +309,7 @@
 		url += query
 	}
 
-	resp, err := c.Request("DELETE", url, gophercloud.RequestOpts{
-		OkCodes: []int{204},
-	})
+	resp, err := c.Request("DELETE", url, gophercloud.RequestOpts{})
 	res.Header = resp.Header
 	res.Err = err
 	return res
@@ -412,7 +409,6 @@
 	url := updateURL(c, containerName, objectName)
 	resp, err := c.Request("POST", url, gophercloud.RequestOpts{
 		MoreHeaders: h,
-		OkCodes:     []int{202},
 	})
 	res.Header = resp.Header
 	res.Err = err