[Mesa3d-dev] Remove GL "DispatchOverride" code

[Brian Paul]

Ian Romanick wrote:
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> Are there any objections to removing the last remnants of Mesa's
> "dispatch override" code?  There are a few bits left in Mesa, some
> function pointers in glcore.h, and some no-op stubs in the server-side
> GLX code.  None of the code is *ever* executed (i.e., there are no calls
> to any of it in either source tree).
> 
> Since this is all dead code, I'd like to gut it all out.

Fine with me.  I had planned to build some API debug/tracing features 
on those hooks but never did so.

-Brian