Cleanup: do not generate RBAC

We author RBAC manually and do not use generated RBAC.
This commit updates `manifests` make target to stop
generating RBAC and removes unused files.

Author: m1kola

Makefile

@@ -322,9 +322,9 @@ deploy: manifests kustomize
 undeploy:
 	$(KUSTOMIZE) build config/default | kubectl delete -f -
 
-# Generate manifests e.g. CRD, RBAC etc.
+# Generate manifests e.g. CRD etc.
 manifests: controller-gen
-	export PATH="$(PATH)"; export GOROOT=$(GOROOT); $(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role paths=./... output:crd:artifacts:config=config/crd/bases
+	export PATH="$(PATH)"; export GOROOT=$(GOROOT); $(CONTROLLER_GEN) $(CRD_OPTIONS) paths=./... output:crd:artifacts:config=config/crd/bases
 	# copy the CRDs to the public folder
 	cp config/crd/bases/* helm_chart/crds/
 	cat "helm_chart/crds/"* > public/crds.yaml