Revert: athenaHLT: change default HLT result size limit to 32 MB
This reverts merge request !64860 (merged)
Increasing the result size limit from 10MB to 32MB causes failures in athenaHLT
when running on the shared GitLab CI runners because they only have 64MB of /dev/shm
. So running with two event slots already pushes us beyond that limit.