[jdk17u-dev] RFR: 8299972: Remove metaprogramming/removeReference.hpp

[George Adams]

prerequisite to bumping googletest to 1.13.0

Applies cleanly other than the deleted file (`src/hotspot/share/metaprogramming/removeReference.hpp`) containing some extra commits

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Commit messages:
 - Backport f52f6e65fba0360d3cf114e19fea402ab0d65eba

Changes: https://git.openjdk.org/jdk17u-dev/pull/2678/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2678&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299972
  Stats: 45 lines in 1 file changed: 0 ins; 45 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2678.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2678/head:pull/2678

PR: https://git.openjdk.org/jdk17u-dev/pull/2678