Removing question concerning default no docs query.

core/src/main/java/org/elasticsearch/index/search/MatchQuery.java

@@ -286,8 +286,6 @@ public class MatchQuery {
     }
 
     protected Query zeroTermsQuery() {
-        // TODO This is weird: DEFAULT_ZERO_TERMS_QUERY is a public static final field, so this can have only one value.
-        // why are we then having this if clause in here?
         return zeroTermsQuery == DEFAULT_ZERO_TERMS_QUERY ? Queries.newMatchNoDocsQuery() : Queries.newMatchAllQuery();
     }