RFR: 8337667: sun/tools/jcmd/TestJcmdPIDSubstitution.java is failing on mac and windows

[Sonia Zaldana Calles]

Hi all, 

This PR addresses [8337667](https://bugs.openjdk.org/browse/JDK-8337667) . 

The `Compiler.perfmap` test case is failing on mac and windows as it is only enabled in linux. I am removing this test case and noting that this use case is already tested in [test/hotspot/jtreg/serviceability/dcmd/compiler/PerfMapTest.java](https://github.com/openjdk/jdk/blob/master/test/hotspot/jtreg/serviceability/dcmd/compiler/PerfMapTest.java#L88) which is linux specific.

Thanks, 
Sonia

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Commit messages:
 - 8337667: sun/tools/jcmd/TestJcmdPIDSubstitution.java is failing on mac and windows

Changes: https://git.openjdk.org/jdk/pull/20421/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20421&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8337667
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/20421.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20421/head:pull/20421

PR: https://git.openjdk.org/jdk/pull/20421