Remove explicit type definition in percolator queries

[danielmitterdorfer]

The type definition on match queries has been deprecated in Elasticsearch 6:

[2017-02-09T14:35:27,735][WARN ][o.e.d.c.ParseField       ] Deprecated field [type] used, replaced by [match_phrase and match_phrase_prefix query]

The cause of these deprecation warnings are percolator queries like these:

{
   "query": {
      "match": {
         "body": {
            "query": "yard bushes",
            "type": "boolean"
         }
      }
   }
}

We need to remove the type from all queries and will provide a new data file.