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GH-44843: [CI][Doc] Remove building Java documentation from this repository (#45000)

### Rationale for this change

Our current documentation jobs are failing to build.

### What changes are included in this PR?

Do not build Java documentation. This will be build on the arrow-java repository:
- https://github.com/apache/arrow-java/issues/455

### Are these changes tested?

Yes on CI

### Are there any user-facing changes?

It shouldn't. We won't be producing the documentation here but it should be generated on the `arrow-java` repository.
* GitHub Issue: #44843

Authored-by: Raúl Cumplido <raulcumplido@gmail.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>