custom: remove support section

src/mailer.js

@@ -26,7 +26,7 @@ exports = module.exports = {
 
 var assert = require('assert'),
     BoxError = require('./boxerror.js'),
-    custom = require('./custom.js'),
+    constants = require('./constants.js'),
     debug = require('debug')('box:mailer'),
     ejs = require('ejs'),
     mail = require('./mail.js'),
@@ -279,7 +279,7 @@ function appDied(mailTo, app) {
             from: mailConfig.notificationFrom,
             to: mailTo,
             subject: util.format('[%s] App %s is down', mailConfig.cloudronName, app.fqdn),
-            text: render('app_down.ejs', { title: app.manifest.title, appFqdn: app.fqdn, supportEmail: custom.spec().support.email, format: 'text' })
+            text: render('app_down.ejs', { title: app.manifest.title, appFqdn: app.fqdn, supportEmail: constants.SUPPORT_EMAIL, format: 'text' })
         };
 
         sendMail(mailOptions);