Fix sonar finding.

Author: phipag

powertools-logging/powertools-logging-logback/src/test/java/software/amazon/lambda/powertools/logging/LogbackLoggingManagerTest.java

@@ -27,7 +27,6 @@
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
 
-import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;