Fix checkstyle errors

Issue gh-10989

Author: Steve Riesenberg

config/src/main/java/org/springframework/security/config/annotation/web/builders/WebSecurity.java

@@ -22,7 +22,6 @@
 import jakarta.servlet.Filter;
 import jakarta.servlet.ServletContext;
 import jakarta.servlet.http.HttpServletRequest;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 

config/src/main/java/org/springframework/security/config/annotation/web/configuration/SecurityReactorContextConfiguration.java

@@ -27,7 +27,6 @@
 
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-
 import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscription;
 import reactor.core.CoreSubscriber;

config/src/main/java/org/springframework/security/config/annotation/web/configurers/saml2/Saml2LogoutConfigurer.java

@@ -23,7 +23,6 @@
 
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-
 import org.opensaml.core.Version;
 
 import org.springframework.context.ApplicationContext;

config/src/main/java/org/springframework/security/config/http/AuthenticationConfigBuilder.java

@@ -24,7 +24,6 @@
 import java.util.function.Function;
 
 import jakarta.servlet.http.HttpServletRequest;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.w3c.dom.Element;

config/src/main/java/org/springframework/security/config/http/CsrfBeanDefinitionParser.java

@@ -21,7 +21,6 @@
 import java.util.List;
 
 import jakarta.servlet.http.HttpServletRequest;
-
 import org.w3c.dom.Element;
 
 import org.springframework.beans.BeanMetadataElement;

config/src/main/java/org/springframework/security/config/http/DefaultFilterChainValidator.java

@@ -22,7 +22,6 @@
 import java.util.List;
 
 import jakarta.servlet.Filter;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 

config/src/main/java/org/springframework/security/config/http/HttpConfigurationBuilder.java

@@ -20,7 +20,6 @@
 import java.util.List;
 
 import jakarta.servlet.ServletRequest;
-
 import org.w3c.dom.Element;
 
 import org.springframework.beans.BeanMetadataElement;

config/src/main/java/org/springframework/security/config/http/OAuth2ResourceServerBeanDefinitionParser.java

@@ -20,7 +20,6 @@
 import java.util.Map;
 
 import jakarta.servlet.http.HttpServletRequest;
-
 import org.w3c.dom.Element;
 
 import org.springframework.beans.BeanMetadataElement;

config/src/main/java/org/springframework/security/config/http/Saml2LogoutBeanDefinitionParser.java

@@ -22,7 +22,6 @@
 import java.util.function.Predicate;
 
 import jakarta.servlet.http.HttpServletRequest;
-
 import org.w3c.dom.Element;
 
 import org.springframework.beans.BeanMetadataElement;

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

@@ -22,7 +22,6 @@
 import jakarta.servlet.FilterChain;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;