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Eero LihavainenGitHub
bbb610e61a0
Eero Lihavainen authored and GitHub committed e62ec62e40b
GH-38591: [Parquet][C++] Remove redundant open calls in `ParquetFileFormat::GetReaderAsync`  (#38621)



### Rationale for this change
There were duplicate method calls causing extra I/O operations, apparently unintentional from https://github.com/apache/arrow/commit/0793432ad0ef5cb598b7b1e61071cd4991bd1b8b.

### What changes are included in this PR?
Remove the extra method calls.

### Are these changes tested?

### Are there any user-facing changes?

* Closes: #38591

Authored-by: Eero Lihavainen <eero.lihavainen@nitor.com>
Signed-off-by: mwish <maplewish117@gmail.com>