fix RE test AfterSuite

Author: ndyakov

main_test.go

@@ -136,7 +136,9 @@ var _ = BeforeSuite(func() {
 })
 
 var _ = AfterSuite(func() {
-	Expect(cluster.Close()).NotTo(HaveOccurred())
+	if !RECluster {
+		Expect(cluster.Close()).NotTo(HaveOccurred())
+	}
 
 	// NOOP if there are no processes registered
 	for _, p := range processes {