object: remove "used" field from struct object

The "used" field in struct object is only used by builtin/fsck. Remove
that field and modify builtin/fsck to use a flag instead.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/object.c b/object.c
index f818777..321d7e9 100644
--- a/object.c
+++ b/object.c
@@ -141,7 +141,6 @@ void *create_object(const unsigned char *sha1, void *o)
 	struct object *obj = o;
 
 	obj->parsed = 0;
-	obj->used = 0;
 	obj->flags = 0;
 	hashcpy(obj->oid.hash, sha1);