little tool for tournament cross-tables

clean up an unnecessary mutation

Introduced in commit FYS7TCDWK on 2022-06-19 and obviated in commit AQQQNDTL5 on 2022-07-07.

Created by  akkartik  on July 17, 2024
CFJ4FLCQO4NHLTEWFRFAGLC5NKMCEQO2NZ33QIF6IT2TXYCAGEVQC
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