unused import

h2/src/test/org/h2/test/mvcc/TestMvccMultiThreaded.java

@@ -11,7 +11,6 @@ import java.sql.Statement;
 import java.util.ArrayList;
 import java.util.concurrent.CyclicBarrier;
 import org.h2.api.ErrorCode;
-import org.h2.test.TestAll;
 import org.h2.test.TestBase;
 import org.h2.util.Task;