Kill <machine/_types.h>.

Most of <machine/_types.h> was either unused, wrong, or identical across
all 32-/64-bit architectures.

I'm not a huge fan of <sys/_types.h> either, but moving the bits we need
up into there is a step forward.

Bug: 12213562
Change-Id: Id13551c78966e324beee2dd90c5575e37d2a71e6

libc/include/sys/_types.h

@@ -32,9 +32,48 @@
  */
 
 #ifndef _SYS__TYPES_H_
-#define	_SYS__TYPES_H_
+#define _SYS__TYPES_H_
 
-#include <machine/_types.h>
+typedef __signed char __int8_t;
+typedef unsigned char __uint8_t;
+typedef short __int16_t;
+typedef unsigned short __uint16_t;
+typedef int __int32_t;
+typedef unsigned int __uint32_t;
+#if __LP64__
+typedef long __int64_t;
+typedef unsigned long __uint64_t;
+#else
+typedef long long __int64_t;
+typedef unsigned long long __uint64_t;
+#endif
+
+#if __LP64__
+typedef long __intptr_t;
+typedef unsigned long __uintptr_t;
+#else
+typedef int __intptr_t;
+typedef unsigned int __uintptr_t;
+#endif
+
+#if __LP64__
+typedef long __time_t;
+#else
+typedef int __time_t; /* Historical accident. */
+#endif
+
+typedef int __timer_t;
+
+typedef int __clockid_t;
+
+#ifndef __cplusplus
+typedef int __wchar_t;
+#endif
+
+typedef double __double_t;
+typedef float __float_t;
+
+typedef __builtin_va_list __va_list;
 
 typedef	unsigned long	__cpuid_t;	/* CPU id */
 typedef	__uint32_t	__fixpt_t;	/* fixed point number */

libc/include/sys/endian.h

@@ -38,7 +38,6 @@
 
 #include <sys/cdefs.h>
 #include <machine/endian.h>
-#include <machine/_types.h>
 
 #define _LITTLE_ENDIAN	1234
 #define _BIG_ENDIAN	4321