RFR: 8317601: Windows build on WSL broken after JDK-8317340

[Andrew Leonard]

On Fri, 6 Oct 2023 10:17:25 GMT, Andrew Leonard <aleonard at openjdk.org> wrote:

> [JDK-8317340](https://bugs.openjdk.org/browse/JDK-8317340) introduced -pathmap'ing of VS_INCLUDE paths to enable reproducible Windows builds that are not dependent on the Visual Studio tooling install location. This however requires pathmap'ing the Windows long paths generated by the compiler, which is no easy task within WSL.
> 
> This PR excludes the VS include pathmap'ing within WSL, which will mean for reproducible builds on WSL, the same VS install location must be used.

@erikj79 for review please, thanks

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PR Comment: https://git.openjdk.org/jdk/pull/16069#issuecomment-1750411831