RFR: 7903735: Remove redundant method in generated code [v2]

[Nizar Benalla]

> Was looking at older issues and saw an opportunity for a refractor.
> I don't see a dependent PR feature for this repo but this is meant to be merged after https://github.com/openjdk/jextract/pull/265

Nizar Benalla has updated the pull request incrementally with one additional commit since the last revision:

  (C) 2025

-------------

Changes:
  - all: https://git.openjdk.org/jextract/pull/266/files
  - new: https://git.openjdk.org/jextract/pull/266/files/aea49d45..e6f28429

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jextract&pr=266&range=01
 - incr: https://webrevs.openjdk.org/?repo=jextract&pr=266&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jextract/pull/266.diff
  Fetch: git fetch https://git.openjdk.org/jextract.git pull/266/head:pull/266

PR: https://git.openjdk.org/jextract/pull/266