refs: delete pack_refs() in favor of refs_pack_refs()

It only has one caller, not worth keeping just for convenience.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/pack-refs.c

@@ -17,5 +17,5 @@ int cmd_pack_refs(int argc, const char **argv, const char *prefix)
 	};
 	if (parse_options(argc, argv, prefix, opts, pack_refs_usage, 0))
 		usage_with_options(pack_refs_usage, opts);
-	return pack_refs(flags);
+	return refs_pack_refs(get_main_ref_store(), flags);
 }

refs.c

@@ -1602,11 +1602,6 @@ int refs_pack_refs(struct ref_store *refs, unsigned int flags)
 	return refs->be->pack_refs(refs, flags);
 }
 
-int pack_refs(unsigned int flags)
-{
-	return refs_pack_refs(get_main_ref_store(), flags);
-}
-
 int refs_peel_ref(struct ref_store *refs, const char *refname,
 		  unsigned char *sha1)
 {

refs.h

@@ -297,7 +297,6 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt,
  * flags: Combination of the above PACK_REFS_* flags.
  */
 int refs_pack_refs(struct ref_store *refs, unsigned int flags);
-int pack_refs(unsigned int flags);
 
 /*
  * Flags controlling ref_transaction_update(), ref_transaction_create(), etc.