RFR: Stop compiling old oopMapStubGenerator

[Aleksey Shipilev]

On Mon, 27 Sep 2021 10:03:55 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> src/hotspot/share/compiler/oopMapStubGenerator.hpp line 60:
>> 
>>> 58: #else
>>> 59: #error This code is not used
>>> 60: #endif
>> 
>> Can you check Windows, I suspect it might have to be excluded.
>
> Um, Windows builds fail here:
>  https://github.com/shipilev/loom/runs/3716995428?check_suite_focus=true
> 
> Which implies `oopMapStubGenerator_x86.cpp` is still compiled? What. Let me see...

See #68.

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PR: https://git.openjdk.java.net/loom/pull/66