RFR: 8333824: Unused ClassValue in VarHandles

[Claes Redestad]

Trivially removing the a leftover, unused `ClassValue` from `java.lang.invoke.VarHandle`

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Commit messages:
 - 8333824: Unused ClassValue in VarHandles

Changes: https://git.openjdk.org/jdk/pull/19620/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19620&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333824
  Stats: 10 lines in 1 file changed: 0 ins; 10 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19620.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19620/head:pull/19620

PR: https://git.openjdk.org/jdk/pull/19620