Remove OAuth2ExchangeFilterFunctions

Fixes: gh-5734

oauth2/oauth2-client/src/main/java/org/springframework/security/oauth2/client/web/reactive/function/client/OAuth2ExchangeFilterFunctions.java

@@ -1,50 +0,0 @@
-/*
- * Copyright 2002-2018 the original author or 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 org.springframework.security.oauth2.client.web.reactive.function.client;
-
-import org.springframework.security.oauth2.client.web.OAuth2AuthorizedClientRepository;
-import org.springframework.web.reactive.function.client.WebClient;
-
-import java.util.function.Consumer;
-
-/**
- * @author Rob Winch
- * @since 5.1
- */
-public final class OAuth2ExchangeFilterFunctions {
-
-	/**
-	 * Configures the WebClient for OAuth2 support in a servlet environment.
-	 * @param repository the repository to use
-	 * @return the {@link Consumer} to configure the WebClient
-	 */
-	public static Consumer<WebClient.Builder> oauth2ServletConfig(OAuth2AuthorizedClientRepository repository) {
-		return new ServletOAuth2AuthorizedClientExchangeFilterFunction(repository)
-				.oauth2Configuration();
-	}
-
-	/**
-	 * Configures the WebClient for OAuth2 support in a servlet environment.
-	 * @return the {@link Consumer} to configure the WebClient
-	 */
-	public static Consumer<WebClient.Builder> oauth2ServletConfig() {
-		return new ServletOAuth2AuthorizedClientExchangeFilterFunction()
-				.oauth2Configuration();
-	}
-
-	private OAuth2ExchangeFilterFunctions() {}
-}