Revert "include: Generate .git_update file."

This reverts commit f636ecd1.
This file had been used by update_package which no longer exists.

Signed-off-by: Andreas Gnau <andreas.gnau@iopsys.eu>

include/iopsys.mk

-
-define git_update
-	echo -e ""\
-	"PKG_BUILD_DIR=$(PKG_BUILD_DIR)\n"\
-	"PKG_SOURCE=$(PKG_SOURCE)\n"\
-	"PKG_NAME=$(PKG_NAME)\n"\
-	"PKG_SOURCE_URL=$(PKG_SOURCE_URL)\n"\
-	"PKG_SOURCE_PROTO=$(PKG_SOURCE_PROTO)\n"\
-	"PKG_SOURCE_VERSION=$(PKG_SOURCE_VERSION)\n"\
-	"PKG_SOURCE=$(PKG_SOURCE)\n"\
-	"PKG_DIR=${CURDIR}\n"\
-	"PKG_SOURCE_VERSION_FILE=$(PKG_SOURCE_VERSION_FILE)\n"\
-	> $(PKG_BUILD_DIR)/.git_update
-
-endef
-
-Hooks/Prepare/Post += git_update
-
 # Include GNU Build ID to easily match coredumps or unstripped binaries
 # to their unstripped counterparts
 TARGET_CFLAGS += -Wl,--build-id

include/package.mk

@@ -134,7 +134,6 @@ include $(INCLUDE_DIR)/package-dumpinfo.mk
 include $(INCLUDE_DIR)/package-ipkg.mk
 include $(INCLUDE_DIR)/package-bin.mk
 include $(INCLUDE_DIR)/autotools.mk
-include $(INCLUDE_DIR)/iopsys.mk
 
 _pkg_target:=$(if $(QUILT),,.)