Remove explicit calls to parse_query.

Now that all query classifier functions parse the query if it
has not been parsed, there is no reason for any module to call
parse_query explicitly.

server/modules/filter/mqfilter.c

@@ -1125,19 +1125,7 @@ routeQuery(FILTER *instance, void *session, GWBUF *queue)
 
     if (modutil_is_SQL(queue))
     {
-
+        success = true;
-        /**Parse the query*/
-
-        if (!query_is_parsed(queue))
-        {
-            success = parse_query(queue);
-        }
-
-        if (!success)
-        {
-            MXS_ERROR("Parsing query failed.");
-            goto send_downstream;
-        }
 
         if (!my_instance->log_all)
         {

server/modules/filter/slavelag.c

@@ -316,11 +316,6 @@ time_t now = time(NULL);
 		queue = gwbuf_make_contiguous(queue);
 	    }
 
-	    if(!query_is_parsed(queue))
-	    {
-		parse_query(queue);
-	    }
-
 	    if(query_classifier_get_operation(queue) & (QUERY_OP_DELETE|QUERY_OP_INSERT|QUERY_OP_UPDATE))
 	    {
 		if((sql = modutil_get_SQL(queue)) != NULL)

server/modules/routing/schemarouter/schemarouter.c

@@ -522,10 +522,6 @@ char* get_shard_target_name(ROUTER_INSTANCE* router, ROUTER_CLIENT_SES* client,
 	char* rval = NULL,*query, *tmp = NULL;
 	bool has_dbs = false; /**If the query targets any database other than the current one*/
 
-	if(!query_is_parsed(buffer)){
-		parse_query(buffer);
-	}
-
 	dbnms = skygw_get_database_names(buffer,&sz);
 
     HASHTABLE* ht = client->shardmap->hash;

server/modules/routing/schemarouter/shardrouter.c

@@ -447,11 +447,6 @@ get_shard_target_name(ROUTER_INSTANCE* router, ROUTER_CLIENT_SES* client, GWBUF*
     char *query = NULL,*tmp = NULL;
     bool has_dbs = false; /**If the query targets any database other than the current one*/
 
-    if(!query_is_parsed(buffer))
-    {
-        parse_query(buffer);
-    }
-
     dbnms = skygw_get_database_names(buffer, &sz);
 
     if(sz > 0)