auth: remove naughty nt-hash

Reported by: @lattera
Reviewed by: @AdSchellevis

src/etc/inc/auth.inc

@@ -489,7 +489,7 @@ function local_user_del($user)
 	local_group_del_user($user);
 }
 
-function local_user_set_password(& $user, $password)
+function local_user_set_password(&$user, $password)
 {
 	$user['password'] = crypt($password, '$6$');
 
@@ -500,9 +500,6 @@ function local_user_set_password(& $user, $password)
 		$a = ord($astr{$i}) << 8;
 		$ustr.= sprintf("%X", $a);
 	}
-
-	// Generate the NT-HASH from the unicode string
-       $user['nt-hash'] = bin2hex(hash("md4", $ustr));
 }
 
 function local_user_get_groups($user, $all = false)