test/jdk/sun/java2d/OpenGL/DrawBufImgOp.java was previously a closed test.
Along with a number of other tests it was stabilised and open-sourced under bug ID 8358058.

It was pointed out that this test had been open-sourced once before as
test/jdk/java/awt/image/VolatileImage/DrawBufImgOp.java

So now we have two versions.

That 2nd one is not updated to be stable, so it should be deleted