[CI] Auto commit changes from spotless

Author: elasticsearchmachine

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/authc/saml/SamlAuthenticatorTests.java

@@ -40,7 +40,6 @@
 import org.opensaml.saml.saml2.core.SubjectConfirmationData;
 import org.opensaml.saml.saml2.core.impl.AuthnStatementBuilder;
 import org.opensaml.saml.saml2.core.impl.IssuerBuilder;
-import org.opensaml.saml.saml2.core.impl.IssuerImpl;
 import org.opensaml.saml.saml2.encryption.Encrypter;
 import org.opensaml.security.credential.BasicCredential;
 import org.opensaml.security.credential.Credential;