libnm/tests: connection might not be gone at the time manager signals removal

The assumption is not too useful to the library user anyway -- it could easily
be that there's some other link to the object in the object tree.

More importantly, when the objects are managed by the object manager,
we don't destroy the object until we see it actually removed on the
D-Bus. That makes more sense anyway.

libnm/tests/test-remote-settings-client.c

@@ -336,9 +336,10 @@ test_remove_connection (void)
 	do {
 		now = time (NULL);
 		g_main_context_iteration (NULL, FALSE);
-	} while ((done == FALSE) && (now - start < 5));
+		if (done && !remote)
+			break;
+	} while (now - start < 5);
 	g_assert (done == TRUE);
-
 	g_assert (!remote);
 
 	/* Ensure NMClient no longer has the connection */