Revert "Bail out if SIZE_MAX < crypto_pwhash_MEMLIMIT_MAX"
Revert "Bail out if SIZE_MAX < crypto_pwhash_MEMLIMIT_MAX"

This reverts commit c2ef7d0882a1c08c130e57efd83558fe213879d0.

Payshares/libsodium,Payshares/libsodium,Payshares/libsodium