RFR: 8304691: Remove jlink --post-process-path option [v5]

[Ian Graves]

> Removing the hidden `jlink --post-process-path` option.

Ian Graves has updated the pull request incrementally with one additional commit since the last revision:

  Removing last bits of post process test

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13126/files
  - new: https://git.openjdk.org/jdk/pull/13126/files/e1af1d5e..70299e88

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13126&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13126&range=03-04

  Stats: 9 lines in 1 file changed: 0 ins; 9 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/13126.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13126/head:pull/13126

PR: https://git.openjdk.org/jdk/pull/13126