cleanup

Author: sterlp

core/src/main/java/org/sterl/spring/persistent_tasks/api/TriggerKey.java

@@ -4,7 +4,6 @@
 import java.time.OffsetDateTime;
 import java.util.UUID;
 
-import org.apache.commons.lang3.StringUtils;
 import org.springframework.lang.Nullable;
 
 import lombok.AllArgsConstructor;