Fix how SQLAuthLogic and SQLRestAuth fetch their user model class.

Author: davexunit

lib/casserver/authenticators/sql_authlogic.rb

@@ -49,8 +49,6 @@ def validate(credentials)
     read_standard_credentials(credentials)
     raise_if_not_configured
 
-    user_model = self.class.user_model
-
     username_column = @options[:username_column] || "login"
     password_column = @options[:password_column] || "crypted_password"
     salt_column     = @options[:salt_column]

lib/casserver/authenticators/sql_rest_auth.rb

@@ -27,8 +27,6 @@ def validate(credentials)
     raise CASServer::AuthenticatorError, "You must specify a 'site_key' in the SQLRestAuth authenticator's configuration!" unless  @options[:site_key]
     raise CASServer::AuthenticatorError, "You must specify 'digest_streches' in the SQLRestAuth authenticator's configuration!" unless  @options[:digest_streches]
 
-    user_model = self.class.user_model
-
     username_column = @options[:username_column] || "email"
 
     log_connection_pool_size