drop add_object_array_with_mode

This is a thin compatibility wrapper around
add_pending_object_with_path. But the only caller is
add_object_array, which is itself just a thin compatibility
wrapper. There are no external callers, so we can just
remove this middle wrapper.
Noticed-by: NRamsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: NJeff King <peff@peff.net>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

object.c

@@ -341,12 +341,7 @@ void add_object_array_with_path(struct object *obj, const char *name,
 
 void add_object_array(struct object *obj, const char *name, struct object_array *array)
 {
-	add_object_array_with_mode(obj, name, array, S_IFINVALID);
-}
-
-void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode)
-{
-	add_object_array_with_path(obj, name, array, mode, NULL);
+	add_object_array_with_path(obj, name, array, S_IFINVALID, NULL);
 }
 
 /*

object.h

@@ -114,7 +114,6 @@ int object_list_contains(struct object_list *list, struct object *obj);
 
 /* Object array handling .. */
 void add_object_array(struct object *obj, const char *name, struct object_array *array);
-void add_object_array_with_mode(struct object *obj, const char *name, struct object_array *array, unsigned mode);
 void add_object_array_with_path(struct object *obj, const char *name, struct object_array *array, unsigned mode, const char *path);
 
 typedef int (*object_array_each_func_t)(struct object_array_entry *, void *);