Fix Imports

Issue: gh-5599

oauth2/oauth2-client/src/test/java/org/springframework/security/oauth2/client/web/WebSessionOAuth2ReactiveAuthorizationRequestRepositoryTests.java

@@ -24,7 +24,6 @@ import org.junit.Test;
 import org.springframework.http.codec.ServerCodecConfigurer;
 import org.springframework.mock.http.server.reactive.MockServerHttpRequest;
 import org.springframework.mock.http.server.reactive.MockServerHttpResponse;
-import org.springframework.mock.web.MockHttpServletRequest;
 import org.springframework.mock.web.server.MockServerWebExchange;
 import org.springframework.security.oauth2.core.endpoint.OAuth2AuthorizationRequest;
 import org.springframework.security.oauth2.core.endpoint.OAuth2ParameterNames;