Fix Checkstyle config

etc/checkstyle/checkstyle.xml

@@ -8,8 +8,5 @@
 	</module>
 
 	<!-- Root Checks -->
-	<module name="io.spring.javaformat.checkstyle.check.SpringHeaderCheck">
-		<property name="headerType" value="https-apache2"/>
-	</module>
-
+	<module name="io.spring.javaformat.checkstyle.SpringChecks"/>
 </module>

etc/checkstyle/src/main/resources/io/spring/javaformat/checkstyle/check/header-https-apache2.txt

@@ -1,15 +0,0 @@
-/*
- * Copyright ${copyright-pattern} the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */