remove junit

buildSrc/src/main/groovy/io/spring/gradle/convention/DependencySetPlugin.groovy

@@ -74,7 +74,6 @@ public class DependencySetPlugin implements Plugin<Project> {
 		]
 
 		project.ext.testDependencies = [
-			"junit:junit",
 			"org.mockito:mockito-core",
 			"org.springframework:spring-test",
 			"org.assertj:assertj-core",

dependencies/spring-security-dependencies.gradle

@@ -33,7 +33,6 @@ dependencies {
 		api "javax.servlet.jsp:javax.servlet.jsp-api:2.3.3"
 		api "javax.servlet:javax.servlet-api:4.0.1"
 		api "javax.xml.bind:jaxb-api:2.3.1"
-		api "junit:junit:4.13.2"
 		api "ldapsdk:ldapsdk:4.1"
 		api "net.sf.ehcache:ehcache:2.10.9.2"
 		api "net.sourceforge.htmlunit:htmlunit:2.49.1"