update gce func DeleteGroup

Author: Camila-B

upup/pkg/fi/cloudup/gce/instancegroups.go

@@ -33,11 +33,11 @@ import (
 
 // DeleteGroup deletes a cloud of instances controlled by an Instance Group Manager
 func (c *gceCloudImplementation) DeleteGroup(g *cloudinstances.CloudInstanceGroup) error {
-	return deleteCloudInstanceGroup(c, g)
+	return DeleteCloudInstanceGroup(c, g)
 }
 
-// deleteCloudInstanceGroup deletes the InstanceGroupManager and current InstanceTemplate
-func deleteCloudInstanceGroup(c GCECloud, g *cloudinstances.CloudInstanceGroup) error {
+// DeleteCloudInstanceGroup deletes the InstanceGroupManager and current InstanceTemplate
+func DeleteCloudInstanceGroup(c GCECloud, g *cloudinstances.CloudInstanceGroup) error {
 	mig := g.Raw.(*compute.InstanceGroupManager)
 	err := DeleteInstanceGroupManager(c, mig)
 	if err != nil {