ARROW-14150: [C++] Don't check delimiter in CSV chunker if no quoting
ARROW-14150: [C++] Don't check delimiter in CSV chunker if no quoting

Improves performance significantly for no quoting case.

Closes #11258 from cyb70289/csv-chunker-no-quoting

Lead-authored-by: Yibo Cai <e732a3f0de35687e82bda0008a72e443d2f69704@arm.com>
Co-authored-by: Neal Richardson <beb59f0141269d2d04e73d0dcc1967b64ba87e13@gmail.com>
Signed-off-by: Neal Richardson <beb59f0141269d2d04e73d0dcc1967b64ba87e13@gmail.com>

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