Removed hash size proofs #16794

Job	Run time
gen-hie	56s
fourmolu	45s
cabal-format	5s
build (8.10.7, ubuntu-latest)	53s
build (9.2.8, ubuntu-latest)	55s
Check if formal-ledger-specifications SRP is valid	10s
build (9.6.6, ubuntu-latest)	54s
Check branch history	11s
build (9.8.4, ubuntu-latest)	53s
build (9.10.1, ubuntu-latest)	55s
${{ matrix.package }}-${{ matrix.ghc }}-${{ matrix.os }}	1s
Tests completed	1s
Send a slack notification on \#ledger-internal if the nightly build failed	1s
	6m 40s

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