diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index 25fa70959..01b7a26fd 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -7826,21 +7826,6 @@ void MessagesManager::add_pending_channel_update(DialogId dialog_id, tl_object_p
         return;
       }
 
-      if (new_pts <= pts && new_pts >= pts - 19999) {
-        LOG(INFO) << "There is no need to process an update with PTS " << new_pts << " in " << dialog_id << " with PTS "
-                  << pts;
-        promise.set_value(Unit());
-        return;
-      }
-
-      if (new_pts > pts && pts != new_pts - pts_count) {
-        LOG(INFO) << "Found a gap in unknown " << dialog_id << " with PTS = " << pts << ". new_pts = " << new_pts
-                  << ", pts_count = " << pts_count << " in update from " << source;
-        add_postponed_channel_update(dialog_id, std::move(update), new_pts, pts_count, std::move(promise));
-        get_channel_difference(dialog_id, pts, new_pts, MessageId(), true, "add_pending_channel_update 3");
-        return;
-      }
-
       d = add_dialog(dialog_id, "add_pending_channel_update 4");
       CHECK(d != nullptr);
       CHECK(d->pts == pts);