Integrated: 8260640: Cleanup dead code and comments imported from OpenGL

[Jayathirth D V]

I did clean build (both debug and release) after this change and also did sanity testing.Build didnt fail in my local Mac.

Now if I clone new repo and build it is failing. Thanks Kevin for root cause and fix:)

Regards,
Jay

> On 29-Jan-2021, at 9:26 PM, Kevin Rushforth <kcr at openjdk.java.net> wrote:
> 
> On Fri, 29 Jan 2021 15:12:31 GMT, Jayathirth D V <jdv at openjdk.org> wrote:
> 
>> Clean up of unused code and removal/updation of comments imported from OpenGL.
> 
> Looks like this fix broke the build. I filed https://bugs.openjdk.java.net/browse/JDK-8260651
> 
> -------------
> 
> PR: https://git.openjdk.java.net/lanai/pull/164