metropolis/n/kubernetes/pki: remove verbose 'ensure' cert logging

Change-Id: Ie12f12a2966282d364730a1c7a148fae78ab236d
Reviewed-on: https://review.monogon.dev/c/monogon/+/190
Reviewed-by: Lorenz Brun <lorenz@nexantic.com>
diff --git a/metropolis/node/kubernetes/pki/kubernetes.go b/metropolis/node/kubernetes/pki/kubernetes.go
index 0e59306..bb68907 100644
--- a/metropolis/node/kubernetes/pki/kubernetes.go
+++ b/metropolis/node/kubernetes/pki/kubernetes.go
@@ -139,7 +139,6 @@
 // are present on etcd.
 func (k *PKI) EnsureAll(ctx context.Context) error {
 	for n, v := range k.Certificates {
-		k.logger.Infof("Ensuring %s exists", string(n))
 		_, _, err := v.Ensure(ctx, k.KV)
 		if err != nil {
 			return fmt.Errorf("could not ensure certificate %q exists: %w", n, err)