Upgrade tests tools and lint migrations and scripts (part 2) (#9998)

* upgrade gulp-babel

* upgrade babel-eslint

* upgrade eslint-friendly-formatter

* start upgrading chai

* start to upgrade eslint

* restore skipped tests

* start to upgrqde monk

* fix linting and remove unused file

* fix mocha notifications, and common tests

* fix unit tests

* start to fix initrgration tests

* more integration tests fixes

* upgrade monk to latest version

* lint /scripts

* migrations: start moving to /archive unused migrations and run eslint with --fix

* lint migrations

* fix more integration tests

* fix test

website/server/controllers/api-v3/auth.js

@@ -347,11 +347,11 @@ api.loginSocial = {
       // Clean previous email preferences
       if (savedUser.auth[network].emails && savedUser.auth[network].emails[0] && savedUser.auth[network].emails[0].value) {
         EmailUnsubscription
-        .remove({email: savedUser.auth[network].emails[0].value.toLowerCase()})
-        .exec()
-        .then(() => {
-          if (!existingUser) sendTxnEmail(savedUser, 'welcome');
-        }); // eslint-disable-line max-nested-callbacks
+          .remove({email: savedUser.auth[network].emails[0].value.toLowerCase()})
+          .exec()
+          .then(() => {
+            if (!existingUser) sendTxnEmail(savedUser, 'welcome');
+          }); // eslint-disable-line max-nested-callbacks
       }
 
       if (!existingUser) {