[code-reflection] RFR: Cleanups [v2]

[Paul Sandoz]

> Clean up vestiges of code required prior to being in the `jdk.incubator.code` module

Paul Sandoz has updated the pull request incrementally with one additional commit since the last revision:

  Remove more constants

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Changes:
  - all: https://git.openjdk.org/babylon/pull/463/files
  - new: https://git.openjdk.org/babylon/pull/463/files/7de1abf4..1a322fde

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=babylon&pr=463&range=01
 - incr: https://webrevs.openjdk.org/?repo=babylon&pr=463&range=00-01

  Stats: 6 lines in 1 file changed: 0 ins; 6 del; 0 mod
  Patch: https://git.openjdk.org/babylon/pull/463.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/463/head:pull/463

PR: https://git.openjdk.org/babylon/pull/463