Remove ability to change update handler after client creation.

GitOrigin-RevId: 917737a440afaeb99f8a8ca809cda2d267bb4b02

example/java/org/drinkless/tdlib/Client.java

@@ -103,28 +103,6 @@ public final class Client implements Runnable {
         return nativeClientExecute(query);
     }
 
-    /**
-     * Replaces handler for incoming updates from the TDLib.
-     *
-     * @param updateHandler    Handler with onResult method which will be called for every incoming
-     *                         update from the TDLib.
-     * @param exceptionHandler Exception handler with onException method which will be called on
-     *                         exception thrown from updateHandler, if it is null, defaultExceptionHandler will be invoked.
-     */
-    public void setUpdateHandler(ResultHandler updateHandler, ExceptionHandler exceptionHandler) {
-        updateHandlers.put(nativeClientId, new Handler(updateHandler, exceptionHandler));
-    }
-
-    /**
-     * Replaces handler for incoming updates from the TDLib. Sets empty ExceptionHandler.
-     *
-     * @param updateHandler Handler with onResult method which will be called for every incoming
-     *                      update from the TDLib.
-     */
-    public void setUpdateHandler(ResultHandler updateHandler) {
-        setUpdateHandler(updateHandler, null);
-    }
-
     /**
      * Replaces default exception handler to be invoked on exceptions thrown from updateHandler and all other ResultHandler.
      *

td/telegram/ClientDotNet.cpp

@@ -76,14 +76,6 @@ public:
     return Api::FromUnmanaged(*td::Client::execute(std::move(request)).object);
   }
 
-  /// <summary>
-  /// Replaces handler for incoming updates from the TDLib.
-  /// </summary>
-  /// <param name="updateHandler">Handler with OnResult method which will be called for every incoming update from the TDLib.</param>
-  void SetUpdateHandler(ClientResultHandler^ updateHandler) {
-    handlers[0] = updateHandler;
-  }
-
   /// <summary>
   /// Launches a cycle which will fetch all results of queries to TDLib and incoming updates from TDLib.
   /// Must be called once on a separate dedicated thread, on which all updates and query results will be handled.