sfs/share: Delete share (#120)

diff --git a/openstack/sharedfilesystems/v2/shares/results.go b/openstack/sharedfilesystems/v2/shares/results.go
index f303201..10d8129 100644
--- a/openstack/sharedfilesystems/v2/shares/results.go
+++ b/openstack/sharedfilesystems/v2/shares/results.go
@@ -80,3 +80,8 @@
 type CreateResult struct {
 	commonResult
 }
+
+// DeleteResult contains the delete results
+type DeleteResult struct {
+	gophercloud.ErrResult
+}