remove pointless strdup() call which slipped into previous commit
diff --git a/got/got.c b/got/got.c
index 02fe06d..df69fef 100644
--- a/got/got.c
+++ b/got/got.c
@@ -1870,7 +1870,7 @@ match_object_id(struct got_object_id **id, char **label,
if (*id == NULL)
err = got_error_from_errno("got_object_id_dup");
if (asprintf(label, "refs/tags/%s",
- strdup(got_object_tag_get_name(tag))) == -1)
+ got_object_tag_get_name(tag)) == -1)
err = got_error_from_errno("asprintf");
got_object_tag_close(tag);
return err;