crypto: remove unused scrypt validation parameter

PR-URL: #22902
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>

lib/internal/crypto/scrypt.js

@@ -70,7 +70,7 @@ function handleError(keybuf, password, salt, N, r, p, maxmem, wrap) {
   throw ex;  // Scrypt operation failed, exception object contains details.
 }
 
-function check(password, salt, keylen, options, callback) {
+function check(password, salt, keylen, options) {
   if (_scrypt === undefined)
     throw new ERR_CRYPTO_SCRYPT_NOT_SUPPORTED();