7113017: Use POSIX compliant include file headers in sun/awt/medialib/mlib_types.h

Reviewed-by: prr, bae
Contributed-by: littlee@linux.vnet.ibm.com

src/share/native/sun/awt/medialib/mlib_types.h

@@ -59,13 +59,8 @@ typedef double             mlib_d64;
 
 #if defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__GNUC__)
 
-#if defined(__linux__)
-#include <stdint.h>                     /* for uintptr_t */
-#include <malloc.h>                     /* for ptrdiff_t */
-#else
-#include <link.h>                       /* for uintptr_t */
-#include <stddef.h>                     /* for ptrdiff_t */
-#endif  /* __linux__ */
+#include <stdint.h>
+#include <stddef.h>
 
 #ifdef MLIB_OS64BIT