match no labels by default

Signed-off-by: everettraven <everettraven@gmail.com>

cmd/manager/main.go

@@ -135,7 +135,7 @@ func main() {
 			DefaultNamespaces: map[string]crcache.Config{
 				systemNamespace: {LabelSelector: k8slabels.Everything()},
 			},
-			DefaultLabelSelector: k8slabels.Everything(),
+			DefaultLabelSelector: k8slabels.Nothing(),
 		},
 		// LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily
 		// when the Manager ends. This requires the binary to immediately end when the