link_message: Remove dead code.

We dropped the THREAD_ID value from the database a while back, but here
is code that's carefully computing that value and then never doing
anything with it. Delete, delete, delete.

diff --git a/database.cc b/database.cc
index d94755780b88eebdce68303e5980417883807dbe..25489e3f5d8bde7151164a0e6f592621fbb5395d 100644 (file)
--- a/database.cc
+++ b/database.cc
@@ -740,20 +740,13 @@ _notmuch_database_link_message (notmuch_database_t *notmuch,
     g_ptr_array_free (parents, TRUE);
 
     if (thread_ids->len) {
-       GString *thread_id;
        char *id;
 
        for (i = 0; i < thread_ids->len; i++) {
            id = (char *) thread_ids->pdata[i];
            _notmuch_message_add_thread_id (message, id);
-           if (i == 0)
-               thread_id = g_string_new (id);
-           else
-               g_string_append_printf (thread_id, ",%s", id);
-
            free (id);
        }
-       g_string_free (thread_id, TRUE);
     } else {
        _notmuch_message_ensure_thread_id (message);
     }