cleanup

Author: sterlp

test/src/main/java/org/sterl/test/AsyncAsserts.java

@@ -4,7 +4,6 @@
 import static org.assertj.core.api.Assertions.fail;
 
 import java.time.Duration;
-import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;