Fix imports

Author: pivovarit

src/test/java/com/pivovarit/collectors/blackbox/FunctionalTest.java

@@ -1,7 +1,6 @@
 package com.pivovarit.collectors.blackbox;
 
 import com.pivovarit.collectors.ParallelCollectors.Batching;
-import org.assertj.core.api.Assertions;
 import org.junit.jupiter.api.DynamicTest;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.TestFactory;
@@ -49,7 +48,6 @@
 import static java.util.stream.Collectors.toList;
 import static java.util.stream.Collectors.toSet;
 import static java.util.stream.Stream.of;
-import static org.assertj.core.api.Assertions.*;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.awaitility.Awaitility.await;