Disable deferred updates during commitment integrity check

[antonis19]

If not disabled, this error appears:

./build/bin/erigon snapshots check-commitment-hist-at-blk --datadir=~/data/eth-mainnet-archive  --block=23575409 

EROR[02-06|13:48:19.570] [check-commitment-hist-at-blk] failure   err="apply deferred updates: MergeHexBranches branch1 is too small: expected at least 457820 got 169 bytes"
Error: apply deferred updates: MergeHexBranches branch1 is too small: expected at least 457820 got 169 bytes