Move apache originated testing helpers into emultest
...format them properly and make them pass the style checks.
@@ -21,7 +21,6 @@ import java.util.EnumSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
-import org.apache.commons.collections.TestSet;
/** J2CL specific EmumSet test as it doesn't support getEnumConstants (b/30745420). */
public class EnumSetTest extends TestSet {
