The constants defined in the UserRestrictions class have been deprecated

The constants defined from the UserRestrictions class have been deprecated in the 2.1.x branch; they are removed from the 3.0.x branch.

• UserRestrictions::NO_EXPIRY
  There is no replacement.
• UserRestrictions::BLACKLIST
  There is no replacement.
• UserRestrictions::WHITELIST
  Use UserRestrictionInterface::PATTERN_ALLOW in code similar to the following one.

      if ($restriction->getPatternType() & UserRestrictionInterface::PATTERN_ALLOW) {
        // The restriction allows the entered value.
      }