diff --git a/src/api/gramjs/methods/client.ts b/src/api/gramjs/methods/client.ts
index dbfdc32d8..0d3553789 100644
--- a/src/api/gramjs/methods/client.ts
+++ b/src/api/gramjs/methods/client.ts
@@ -97,8 +97,6 @@ export async function destroy() {
 function handleGramJsUpdate(update: any) {
   if (update instanceof connection.UpdateConnectionState) {
     isConnected = update.state === connection.UpdateConnectionState.connected;
-  } else if (update instanceof GramJs.UpdatesTooLong) {
-    void handleTerminatedSession();
   }
 }
 
@@ -233,18 +231,3 @@ function injectUpdateEntities(result: GramJs.Updates | GramJs.UpdatesCombined) {
     }
   });
 }
-
-async function handleTerminatedSession() {
-  try {
-    await invokeRequest(new GramJs.users.GetFullUser({
-      id: new GramJs.InputUserSelf(),
-    }), undefined, true);
-  } catch (err) {
-    if (err.message === 'AUTH_KEY_UNREGISTERED') {
-      onUpdate({
-        '@type': 'updateConnectionState',
-        connectionState: 'connectionStateBroken',
-      });
-    }
-  }
-}