RFR: 8301464: Code in GenFullCP is still disabled after JDK-8079697 was fixed

[xiaotaonan]

Code in GenFullCP is still disabled after JDK-8079697 was fixed
note:I have not found any relevant information on why ClassWriter.COMPUTE_FRAMES is disabled in JDK-8079697.

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Commit messages:
 - Code in GenFullCP is still disabled after JDK-8079697 was fixed

Changes: https://git.openjdk.org/jdk/pull/19228/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19228&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301464
  Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19228.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19228/head:pull/19228

PR: https://git.openjdk.org/jdk/pull/19228