Remove Stray Import

Author: jzheaux

config/src/test/java/org/springframework/security/SpringSecurityCoreVersionSerializableTests.java

@@ -201,7 +201,6 @@
 import org.springframework.security.web.savedrequest.SimpleSavedRequest;
 import org.springframework.security.web.server.firewall.ServerExchangeRejectedException;
 import org.springframework.security.web.session.HttpSessionCreatedEvent;
-import org.springframework.security.web.util.UrlUtils;
 import org.springframework.security.web.webauthn.api.Bytes;
 import org.springframework.security.web.webauthn.api.ImmutablePublicKeyCredentialUserEntity;
 import org.springframework.security.web.webauthn.api.PublicKeyCredentialUserEntity;