svn commit: r56450 - /dev/arrow/apache-arrow-rs-20.0.0-rc2/

[agrove]

Author: agrove
Date: Mon Aug 22 20:59:25 2022
New Revision: 56450

Log:
delete old arrow-rs release candidate

Removed:
    dev/arrow/apache-arrow-rs-20.0.0-rc2/