RFR: 8275162: Replace 'def' macros in mutexLocker.cpp

[Coleen Phillimore]

On Thu, 21 Oct 2021 15:24:46 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This patch removes the 'def' macros from mutexLocker.cpp so it can use the default values for _allow_vm_block when possible and no more macro.
> Tested with tier1-3 with product and debug builds.

Thanks Patricio!

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PR: https://git.openjdk.java.net/jdk/pull/6066