Cleaning up include statements

Removing inclusion of malloc.h. Adding crtdbg.h

src/qualroute.c

@@ -11,13 +11,10 @@ Last Updated: 11/27/2018
 ******************************************************************************
 */
 
-#include <stdio.h>
-#ifndef __APPLE__
-#include <malloc.h>
-#else
 #include <stdlib.h>
-#endif
+#include <stdio.h>
 #include <math.h>
+
 #include "mempool.h"
 #include "types.h"