Remove explicit module name from log messages

The module name doesn't need to be logged as MXS_MODULE_NAME will be
automatically added as a prefix to all messages logged by the module.

server/modules/routing/readwritesplit/rwsplit_route_stmt.c

@@ -1000,9 +1000,7 @@ bool handle_hinted_target(ROUTER_CLIENT_SES *rses, GWBUF *querybuf,
              * backend server.
              */
             named_server = hint->data;
-            MXS_INFO("Hint: route to server "
-                 "'%s'",
-                 named_server);
+            MXS_INFO("Hint: route to server '%s'", named_server);
         }
         else if (hint->type == HINT_PARAMETER &&
              (strncasecmp((char *)hint->data, "max_slave_replication_lag",