Remove custom security config from oauth2Login sample

Fixes gh-4808

samples/boot/oauth2login/src/main/java/sample/OAuth2LoginApplication.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2002-2017 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.

samples/boot/oauth2login/src/main/java/sample/config/OAuth2LoginConfig.java

@@ -1,51 +0,0 @@
-/*
- * Copyright 2002-2017 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 sample.config;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
-import org.springframework.security.oauth2.client.InMemoryOAuth2AuthorizedClientService;
-import org.springframework.security.oauth2.client.OAuth2AuthorizedClientService;
-import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
-
-/**
- * @author Joe Grandja
- */
-@EnableWebSecurity
-public class OAuth2LoginConfig extends WebSecurityConfigurerAdapter {
-
-	@Autowired
-	private ClientRegistrationRepository clientRegistrationRepository;
-
-	@Override
-	protected void configure(HttpSecurity http) throws Exception {
-		http
-			.authorizeRequests()
-				.anyRequest().authenticated()
-				.and()
-			.oauth2Login()
-				.clientRegistrationRepository(this.clientRegistrationRepository)
-				.authorizedClientService(this.authorizedClientService());
-	}
-
-	@Bean
-	public OAuth2AuthorizedClientService authorizedClientService() {
-		return new InMemoryOAuth2AuthorizedClientService(this.clientRegistrationRepository);
-	}
-}

samples/boot/oauth2login/src/main/java/sample/web/MainController.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2002-2017 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.