Ondrej Kozina authored Dec 18, 2014 and Milan Broz committed Jan 10, 2015

- cryptsetup library is not required to be FIPS certified anymore
  due to fact gcrypt PBKDF2 algorithm can be used instead of
  cryptsetup internal one.

- check in library constructor is no longer needed and therefore
  removed.

- all other checks regarding MK extraction or random generator
  restrictions remain the same