Revert "support OS-specific hashed passwords"

This reverts commit c825274e2db3b9e2bff54eb1ff592ba6444c8c4c.
The dependent module is not installing correctly, reverting until that can be resolved.
correct developer user parameter for hashed passwords

this parameter was named "crypted_password", although "hashed_password"
is the correct term (the password is not recoverable from the input,
and thus not "encrypted" but "hashed").