pdt(k): don't safety check the db con in child init

- proper db connection is returned based on pid condition

modules_k/pdt/pdt.c

@@ -275,10 +275,7 @@ error1:
  */
 static int mi_child_init(void)
 {
-	/* check if db handler is initialized */
-	if(db_con!=NULL)
-		return 0;
-
+	/* db handler initialization */
 	db_con = pdt_dbf.init(&db_url);
 	if(db_con==NULL)
 	{