Revert "compat/clipped-write.c: large write(2) fails on Mac OS X/XNU"

This reverts commit 6c642a8.

The previous commit introduced a size limit on IO chunks on all
platforms.  The compat clipped_write() is not needed anymore.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Makefile

@@ -69,9 +69,6 @@ all::
 # Define NO_MSGFMT_EXTENDED_OPTIONS if your implementation of msgfmt
 # doesn't support GNU extensions like --check and --statistics
 #
-# Define NEEDS_CLIPPED_WRITE if your write(2) cannot write more than
-# INT_MAX bytes at once (e.g. MacOS X).
-#
 # Define HAVE_PATHS_H if you have paths.h and want to use the default PATH
 # it specifies.
 #
@@ -1493,11 +1490,6 @@ ifndef NO_MSGFMT_EXTENDED_OPTIONS
 	MSGFMT += --check --statistics
 endif
 
-ifdef NEEDS_CLIPPED_WRITE
-	BASIC_CFLAGS += -DNEEDS_CLIPPED_WRITE
-	COMPAT_OBJS += compat/clipped-write.o
-endif
-
 ifneq (,$(XDL_FAST_HASH))
 	BASIC_CFLAGS += -DXDL_FAST_HASH
 endif

config.mak.uname

@@ -95,7 +95,6 @@ ifeq ($(uname_S),Darwin)
 	NO_MEMMEM = YesPlease
 	USE_ST_TIMESPEC = YesPlease
 	HAVE_DEV_TTY = YesPlease
-	NEEDS_CLIPPED_WRITE = YesPlease
 	COMPAT_OBJS += compat/precompose_utf8.o
 	BASIC_CFLAGS += -DPRECOMPOSE_UNICODE
 endif

git-compat-util.h

@@ -185,11 +185,6 @@ typedef unsigned long uintptr_t;
 #define probe_utf8_pathname_composition(a,b)
 #endif
 
-#ifdef NEEDS_CLIPPED_WRITE
-ssize_t clipped_write(int fildes, const void *buf, size_t nbyte);
-#define write(x,y,z) clipped_write((x),(y),(z))
-#endif
-
 #ifdef MKDIR_WO_TRAILING_SLASH
 #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
 extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);