netty: Delete deprecated HandlerSettings

netty/src/main/java/io/grpc/netty/HandlerSettings.java

@@ -1,47 +0,0 @@
-/*
- * Copyright 2016 The gRPC Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package io.grpc.netty;
-
-import com.google.common.annotations.VisibleForTesting;
-import io.grpc.Internal;
-
-/**
- * Allows autoFlowControl to be turned on and off from interop testing and flow control windows to
- * be accessed. For internal use only.
- *
- * @deprecated renamed to {@link InternalHandlerSettings} and should not be used externally
- */
-@VisibleForTesting // Visible for tests in other packages.
-@Internal
-@Deprecated
-public final class HandlerSettings {
-  public static void enable(boolean enable) {
-    NettyHandlerSettings.enable(enable);
-  }
-
-  public static synchronized void autoWindowOn(boolean autoFlowControl) {
-    NettyHandlerSettings.autoWindowOn(autoFlowControl);
-  }
-
-  public static synchronized int getLatestClientWindow() {
-    return NettyHandlerSettings.getLatestServerWindow();
-  }
-
-  public static synchronized int getLatestServerWindow() {
-    return NettyHandlerSettings.getLatestServerWindow();
-  }
-}