RFR: 8345218: Clean out references to windows-x86 in jib profiles

[Magnus Ihse Bursie]

I forgot to remove the references to windows-x86 in the JIB profiles in [JDK-8339783](https://bugs.openjdk.org/browse/JDK-8339783).

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Commit messages:
 - 8345218: Clean out references to windows-x86 in jib profiles

Changes: https://git.openjdk.org/jdk/pull/22443/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22443&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8345218
  Stats: 14 lines in 1 file changed: 0 ins; 13 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22443.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22443/head:pull/22443

PR: https://git.openjdk.org/jdk/pull/22443