Makefile: drop D_INO_IN_DIRENT build knob

Now that fsck has dropped its inode-sorting, there are no
longer any users of this knob, and it can go away.
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Makefile

@@ -74,8 +74,6 @@ all::
 # Define HAVE_PATHS_H if you have paths.h and want to use the default PATH
 # it specifies.
 #
-# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
-#
 # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 # d_type in struct dirent (Cygwin 1.5, fixed in Cygwin 1.7).
 #
@@ -1160,9 +1158,6 @@ endif
 ifdef NO_D_TYPE_IN_DIRENT
 	BASIC_CFLAGS += -DNO_D_TYPE_IN_DIRENT
 endif
-ifdef NO_D_INO_IN_DIRENT
-	BASIC_CFLAGS += -DNO_D_INO_IN_DIRENT
-endif
 ifdef NO_GECOS_IN_PWENT
 	BASIC_CFLAGS += -DNO_GECOS_IN_PWENT
 endif

config.mak.uname

@@ -166,7 +166,6 @@ endif
 ifeq ($(uname_O),Cygwin)
 	ifeq ($(shell expr "$(uname_R)" : '1\.[1-6]\.'),4)
 		NO_D_TYPE_IN_DIRENT = YesPlease
-		NO_D_INO_IN_DIRENT = YesPlease
 		NO_STRCASESTR = YesPlease
 		NO_MEMMEM = YesPlease
 		NO_MKSTEMPS = YesPlease
@@ -370,7 +369,6 @@ ifeq ($(uname_S),Windows)
 	NO_POSIX_GOODIES = UnfortunatelyYes
 	NATIVE_CRLF = YesPlease
 	DEFAULT_HELP_FORMAT = html
-	NO_D_INO_IN_DIRENT = YesPlease
 
 	CC = compat/vcbuild/scripts/clink.pl
 	AR = compat/vcbuild/scripts/lib.pl
@@ -520,7 +518,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
 	NO_INET_NTOP = YesPlease
 	NO_POSIX_GOODIES = UnfortunatelyYes
 	DEFAULT_HELP_FORMAT = html
-	NO_D_INO_IN_DIRENT = YesPlease
 	COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -D_USE_32BIT_TIME_T -DNOGDI -Icompat -Icompat/win32
 	COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
 	COMPAT_OBJS += compat/mingw.o compat/winansi.o \

configure.ac

@@ -767,13 +767,6 @@ elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then
 	GIT_CONF_SUBST([NO_NSEC])
 fi
 #
-# Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent.
-AC_CHECK_MEMBER(struct dirent.d_ino,
-[NO_D_INO_IN_DIRENT=],
-[NO_D_INO_IN_DIRENT=YesPlease],
-[#include <dirent.h>])
-GIT_CONF_SUBST([NO_D_INO_IN_DIRENT])
-#
 # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks
 # d_type in struct dirent (latest Cygwin -- will be fixed soonish).
 AC_CHECK_MEMBER(struct dirent.d_type,