Delete InsufficientPasswordHash_CryptoJS_fixed

file not used in qhelp

javascript/ql/src/Security/CWE-916/examples/InsufficientPasswordHash_CryptoJS_fixed

@@ -1,8 +0,0 @@
-const crypto = require('crypto-js')
-function hashPassword(email, password) {
-  var algo = crypto.algo.PBKDF2.create()
-  algo.update(password, 'utf-8') // GOOD
-  algo.update(email.toLowerCase(), 'utf-8')
-  var hash = algo.finalize()
-  return hash.toString(crypto.enc.Base64)
-}