Removed unnecessary route callbacks from facebook and google auth

app.js

@@ -64,30 +64,18 @@ app.get('/auth/facebook', passport.authenticate('facebook', {
   scope: [
     'email'
   ]
-}), function(req, res) {
+}));
-  // The request will be redirected to Facebook for authentication, so this
-  // function will not be called.
-});
-
 app.get('/auth/facebook/callback', passport.authenticate('facebook', { successRedirect: '/', failureRedirect: '/login' }));
-
-
 app.get('/auth/google', passport.authenticate('google', {
   scope: [
     'https://www.googleapis.com/auth/userinfo.profile',
     'https://www.googleapis.com/auth/userinfo.email'
   ]
-}), function (req, res) {
+}));
-  // The request will be redirected to Google for authentication, so this
-  // function will not be called.
-});
-
 app.get('/auth/google/callback', passport.authenticate('google', {
   successRedirect: '/',
   failureRedirect: '/login'
-}), function (req, res) {
+}));
-  res.redirect('/');
-});
 
 
 app.get('/auth/foursquare', api.foursquareAuth);