Remove local parameter for /_cat/aliases in JSON

TODO: also update .ts once you've figured out the best way

Author: PeteGillinElastic

specification/_json_spec/cat.aliases.json

@@ -32,10 +32,6 @@
         "type": "string",
         "description": "a short version of the Accept header, e.g. json, yaml"
       },
-      "local": {
-        "type": "boolean",
-        "description": "Return local information, do not retrieve the state from master node (default: false)"
-      },
       "h": {
         "type": "list",
         "description": "Comma-separated list of column names to display"