Remove unused import in TestingPrestoClient
@@ -71,7 +71,6 @@ import static com.facebook.presto.util.DateTimeUtils.parseTimestampWithoutTimeZo
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Iterables.transform;
-import static java.util.Objects.requireNonNull;
import static java.util.stream.Collectors.toList;
public class TestingPrestoClient
