fix: remove duplicate helm repo, forgot something in renovate.json5

.github/renovate.json5

@@ -181,7 +181,11 @@
     {
       "matchDatasources": ["helm"],
       "addLabels": ["renovate/helm"]
-    }
+    },
+    {
+      "matchDatasources": ["github-releases", "github-tags"],
+      "addLabels": ["renovate/github-release"]
+    },
   ],
   // custom managers
   "customManagers": [

cluster/core/helm-repositories.yaml

@@ -15,12 +15,3 @@ metadata:
 spec:
   interval: 1m
   url: https://bjw-s.github.io/helm-charts
----
-apiVersion: source.toolkit.fluxcd.io/v1beta2
-kind: HelmRepository
-metadata:
-  name: grafana-charts
-  namespace: flux-system
-spec:
-  interval: 1m
-  url: https://grafana.github.io/helm-charts