Cleans up kustomize files

* `patchesStrategicMerge` is deprecated
* `config/default/manager_config_patch.yaml` is unused

Signed-off-by: Mikalai Radchuk <mradchuk@redhat.com>

config/crd/kustomization.yaml

@@ -5,15 +5,15 @@ resources:
 - bases/operators.operatorframework.io_operators.yaml
 #+kubebuilder:scaffold:crdkustomizeresource
 
-patchesStrategicMerge:
+patches:
 # [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix.
 # patches here are for enabling the conversion webhook for each CRD
-#- patches/webhook_in_operators.yaml
+#- path: patches/webhook_in_operators.yaml
 #+kubebuilder:scaffold:crdkustomizewebhookpatch
 
 # [CERTMANAGER] To enable cert-manager, uncomment all the sections with [CERTMANAGER] prefix.
 # patches here are for enabling the CA injection for each CRD
-#- patches/cainjection_in_operators.yaml
+#- path: patches/cainjection_in_operators.yaml
 #+kubebuilder:scaffold:crdkustomizecainjectionpatch
 
 # the following config is for teaching kustomize how to do kustomization for CRDs.

config/default/kustomization.yaml

@@ -26,11 +26,11 @@ resources:
 # [PROMETHEUS] To enable prometheus monitor, uncomment all sections with 'PROMETHEUS'.
 #- ../prometheus
 
-patchesStrategicMerge:
+patches:
 # Protect the /metrics endpoint by putting it behind auth.
 # If you want your controller-manager to expose the /metrics
 # endpoint w/o any authn/z, please comment the following line.
-- manager_auth_proxy_patch.yaml
+- path: manager_auth_proxy_patch.yaml