Remove unrelated license headers from Java test files

Co-authored-by: v1v <[email protected]>

Author: Copilot

log4j2-ecs-layout/src/test/java/co/elastic/logging/log4j2/EcsLayoutWithCustomMdcSerializerTest.java

@@ -1,27 +1,3 @@
-/*-
- * #%L
- * Java ECS logging
- * %%
- * Copyright (C) 2019 - 2025 Elastic and contributors
- * %%
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you 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
- * 
- *   http://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.
- * #L%
- */
 package co.elastic.logging.log4j2;
 
 import static co.elastic.logging.log4j2.CustomMdcSerializer.CUSTOM_MDC_SERIALIZER_TEST_KEY;

log4j2-ecs-layout/src/test/java/co/elastic/logging/log4j2/EcsLayoutWithNotExistCustomMdcSerializerTest.java

@@ -1,27 +1,3 @@
-/*-
- * #%L
- * Java ECS logging
- * %%
- * Copyright (C) 2019 - 2025 Elastic and contributors
- * %%
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you 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
- * 
- *   http://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.
- * #L%
- */
 package co.elastic.logging.log4j2;
 
 import static org.assertj.core.api.Assertions.assertThatThrownBy;

log4j2-ecs-layout/src/test/java/co/elastic/logging/log4j2/MdcSerializerResolverTest.java

@@ -1,27 +1,3 @@
-/*-
- * #%L
- * Java ECS logging
- * %%
- * Copyright (C) 2019 - 2025 Elastic and contributors
- * %%
- * Licensed to Elasticsearch B.V. under one or more contributor
- * license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright
- * ownership. Elasticsearch B.V. licenses this file to you 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
- * 
- *   http://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.
- * #L%
- */
 package co.elastic.logging.log4j2;
 
 import org.junit.jupiter.api.Test;