Set the initial worker count for the RDE beam pipeline at 24 (#1572)

* Set the initial worker count for the RDE beam pipeline at 24

This likely will speed up the pipeline by skipping the initially slow
process of spinning up instances.

core/src/main/resources/google/registry/beam/rde_pipeline_metadata.json

@@ -49,22 +49,6 @@
       "regexes": [
         "[A-Za-z0-9\\-_]+"
       ]
-    },
-    {
-      "name": "workerMachineType",
-      "label": "The GCE machine type for the dataflow job workers.",
-      "helpText": "See https://cloud.google.com/dataflow/quotas#compute-engine-quotas for available machine types.",
-      "regexes": [
-        "[a-z0-9\\-]+"
-      ]
-    },
-    {
-      "name": "usePublicIps",
-      "label": "Whether the GCE workers are assigned public IPs",
-      "helpText": "Public IPs have an associated cost and there's a quota per region on the total number of public IPs assigned at a given time. If the service only needs to access GCP APIs, it's better to not use public IP, but one needs to configure the network accordingly. See https://cloud.google.com/dataflow/docs/guides/routes-firewall.",
-      "regexes": [
-        "true|false"
-      ]
     }
   ]
 }