base-files: don't set ARGV and ARGC

Those are not used by any image check function anymore.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 3f4c785a6bbde87296e362c315f10b55c98843e3)

package/base-files/Makefile

@@ -12,7 +12,7 @@ include $(INCLUDE_DIR)/version.mk
 include $(INCLUDE_DIR)/feeds.mk
 
 PKG_NAME:=base-files
-PKG_RELEASE:=203
+PKG_RELEASE:=204
 PKG_FLAGS:=nonshared
 
 PKG_FILE_DEPENDS:=$(PLATFORM_DIR)/ $(GENERIC_PLATFORM_DIR)/base-files/

package/base-files/files/lib/upgrade/stage2

@@ -6,9 +6,6 @@
 export IMAGE="$1"
 COMMAND="$2"
 
-export ARGV="$IMAGE"
-export ARGC=1
-
 export SAVE_CONFIG=1
 export SAVE_PARTITIONS=1
 

package/base-files/files/sbin/sysupgrade

@@ -316,9 +316,6 @@ case "$IMAGE" in
 		;;
 esac
 
-export ARGV="$IMAGE"
-export ARGC=1
-
 for check in $sysupgrade_image_check; do
 	( $check "$IMAGE" ) || {
 		if [ $FORCE -eq 1 ]; then