aurweb: enable goaurrpc metrics

roles/grafana/files/dashboards/goaurrpc.json

@@ -469,7 +469,7 @@
           },
           "editorMode": "builder",
           "exemplar": false,
-          "expr": "label_replace(sum by(by) (rate(rpc_requests{type=\"search\"}[5m])), \"by\", \"name-desc\", \"by\", \"^$\")",
+          "expr": "sum by(by) (rate(rpc_requests{type=\"search\"}[5m]))",
           "instant": false,
           "legendFormat": "{{by}}",
           "range": true,