GH-45626: [CI][Docs] Remove Java related configurations from ci/docker/linux-apt-docs.dockerfile

[kou]

Rationale for this change

Java docs are generated in apache/arrow-java.

What changes are included in this PR?

Remove JDK and Maven related configurations.

Are these changes tested?

Yes.

Are there any user-facing changes?

No.

• GitHub Issue: [CI][Docs] Remove Java related configurations from ci/docker/linux-apt-docs.dockerfile #45626

[kou]

@github-actions crossbow submit preview-docs

[github-actions]

⚠️ GitHub issue #45626 has been automatically assigned in GitHub to PR creator.

[github-actions]

Revision: de6348e

Submitted crossbow builds: ursacomputing/crossbow @ actions-9063aa38f0

Task	Status
preview-docs

[raulcd]

LGTM. On a slightly different note, do you know if this dockerfile: java-jni-manylinux-201x.dockerfile is used anymore? While reviewing this I took a look and it seems it could also be removed right?

[kou]

Good catch! We can remove it: #45631

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 4 benchmarking runs that have been run so far on merge-commit 6f1cbc3.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 20 possible false positives for unstable benchmarks that are known to sometimes produce them.