Revert of Update Zlib to version 1.2.8

third_party/zlib/contrib/minizip/ioapi.h

Index: third_party/zlib/contrib/minizip/ioapi.h
diff --git a/third_party/zlib/contrib/minizip/ioapi.h b/third_party/zlib/contrib/minizip/ioapi.h
index c1b7a54847f552fd54d8716152a002b11b863d74..dfa3b6ca3a7c2b6d5a62e3ba4b8d03def320ca57 100644
--- a/third_party/zlib/contrib/minizip/ioapi.h
+++ b/third_party/zlib/contrib/minizip/ioapi.h
@@ -21,7 +21,7 @@
 #ifndef _ZLIBIOAPI64_H
 #define _ZLIBIOAPI64_H
 
-#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__))
+#if (!defined(_WIN32)) && (!defined(WIN32))
 
   // Linux needs this to support file operation on files larger then 4+GB
   // But might need better if/def to select just the platforms that needs them.
@@ -38,7 +38,6 @@
         #ifndef _FILE_OFFSET_BIT
                 #define _FILE_OFFSET_BIT 64
         #endif
-
 #endif
 
 #include <stdio.h>
@@ -50,11 +49,6 @@
 #define ftello64 ftell
 #define fseeko64 fseek
 #else
-#ifdef __FreeBSD__
-#define fopen64 fopen
-#define ftello64 ftello
-#define fseeko64 fseeko
-#endif
 #ifdef _MSC_VER
  #define fopen64 fopen
  #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC)))
@@ -91,8 +85,6 @@
 typedef uint64_t ZPOS64_T;
 #else
 
-/* Maximum unsigned 32-bit value used as placeholder for zip64 */
-#define MAXU32 0xffffffff
 
 #if defined(_MSC_VER) || defined(__BORLANDC__)
 typedef unsigned __int64 ZPOS64_T;