[jdk17u-dev] RFR: 8299402: Remove metaprogramming/isVolatile.hpp

[George Adams]

prerequisite to bumping googletest to 1.13.0

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Commit messages:
 - Backport 9d3d03997e9eb283bd58c8ea740e62689334966a

Changes: https://git.openjdk.org/jdk17u-dev/pull/2669/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2669&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299402
  Stats: 83 lines in 3 files changed: 1 ins; 80 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2669.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2669/head:pull/2669

PR: https://git.openjdk.org/jdk17u-dev/pull/2669