Revert "Parameterize and lower bcrypt cost"
Revert "Parameterize and lower bcrypt cost"

This reverts commit dfc4cdd2d71513e4a9922d679c74f36357c4c862.

tendermint/go-crypto,tendermint/tendermint,tendermint/tendermint,tendermint/tendermint,tendermint/tendermint