Remove the malloc.h inclusion.

Patch by Diego Pettenò.

http://bugs.gentoo.org/103241

--- pcimodules.c
+++ pcimodules.c
@@ -16,7 +16,6 @@
 
 #include <stdlib.h>
 #include <stdio.h>
-#include <malloc.h>
 #include <string.h>
 #include <unistd.h>
 #include <sys/utsname.h>