Makefile: remove $(GIT_VERSION) from $(SCRIPT_DEFINES)

Remove the $(GIT_VERSION) from $(SCRIPT_DEFINES). Now every time HEAD
changes in a development copy we don't need to re-build the scripts
and script libraries.

This has not been needed since 2b9391b (Makefile: do not replace
@@GIT_VERSION@@ in shell scripts, 2012-06-20). On my setup this
changes the re-making of 44 targets in a development copy where moved
HEAD to 27.

The $(GIT_VERSION) was seemingly left here by mistake or omission. We
didn't need it since 2b9391b, but in the later
e4dd89a (Makefile: update scripts when build-time parameters
change, 2012-06-20) it was added to SCRIPT_DEFINES.

The two were part of the same series of patches, and given the summary
in [1] and [2] it looks like this was probably a case of some earlier
version of a later patch being combined with an updated earlier patch.

1. https://lore.kernel.org/git/[email protected]/
2. https://lore.kernel.org/git/[email protected]/

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

Makefile

@@ -2252,7 +2252,7 @@ command-list.h: $(wildcard Documentation/git*.txt)
 hook-list.h: generate-hooklist.sh Documentation/githooks.txt
 	$(QUIET_GEN)$(SHELL_PATH) ./generate-hooklist.sh >$@
 
-SCRIPT_DEFINES = $(SHELL_PATH_SQ):$(DIFF_SQ):$(GIT_VERSION):\
+SCRIPT_DEFINES = $(SHELL_PATH_SQ):$(DIFF_SQ):\
 	$(localedir_SQ):$(NO_CURL):$(USE_GETTEXT_SCHEME):$(SANE_TOOL_PATH_SQ):\
 	$(gitwebdir_SQ):$(PERL_PATH_SQ):$(SANE_TEXT_GREP):$(PAGER_ENV):\
 	$(perllibdir_SQ)