arrow

GH-44905: [Dev] Remove unused file with only header (#45526)

### Rationale for this change

There is a stray file that is not used anymore.

It was added here: https://github.com/apache/arrow/commit/e7e399db5fc6913e67426514279f81766a0778d2
and was used at: `java/format/pom.xml`

### What changes are included in this PR?

Remove the unused file.

### Are these changes tested?

No

### Are there any user-facing changes?

No
* GitHub Issue: #44905

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