Revert "Fix login redirection to requested page after email authentication"

This reverts commit 679b72c5

lib/auth/email/index.js

@@ -73,7 +73,7 @@ emailAuth.post('/login', urlencodedParser, function (req, res, next) {
   if (!validator.isEmail(req.body.email)) return response.errorBadRequest(req, res)
   setReturnToFromReferer(req)
   passport.authenticate('local', {
-    successReturnToOrRedirect: req.session.returnTo,
+    successReturnToOrRedirect: config.serverURL + '/',
     failureRedirect: config.serverURL + '/',
     failureFlash: 'Invalid email or password.'
   })(req, res, next)