rename function to setupDnsAndCert

this way, we can reuse this logic for the mail domain as well

src/domains.js

@@ -26,13 +26,10 @@ module.exports = exports = {
 
     parentDomain: parentDomain,
 
-    checkDnsRecords: checkDnsRecords,
-
-    setupDashboardDnsAndCert: setupDashboardDnsAndCert
+    checkDnsRecords: checkDnsRecords
 };
 
 var assert = require('assert'),
-    async = require('async'),
     BoxError = require('./boxerror.js'),
     constants = require('./constants.js'),
     debug = require('debug')('box:domains'),
@@ -453,33 +450,3 @@ function makeWildcard(hostname) {
     parts[0] = '*';
     return parts.join('.');
 }
-
-function setupDashboardDnsAndCert(domain, auditSource, progressCallback, callback) {
-    assert.strictEqual(typeof domain, 'string');
-    assert.strictEqual(typeof auditSource, 'object');
-    assert.strictEqual(typeof progressCallback, 'function');
-    assert.strictEqual(typeof callback, 'function');
-
-    get(domain, function (error, domainObject) {
-        if (error) return callback(error);
-
-        const adminFqdn = fqdn(constants.ADMIN_LOCATION, domainObject);
-
-        sysinfo.getServerIp(function (error, ip) {
-            if (error) return callback(error);
-
-            async.series([
-                (done) => { progressCallback({ percent: 10, message: `Updating DNS of ${adminFqdn}` }); done(); },
-                upsertDnsRecords.bind(null, constants.ADMIN_LOCATION, domain, 'A', [ ip ]),
-                (done) => { progressCallback({ percent: 40, message: `Waiting for DNS of ${adminFqdn}` }); done(); },
-                waitForDnsRecord.bind(null, constants.ADMIN_LOCATION, domain, 'A', ip, { interval: 30000, times: 50000 }),
-                (done) => { progressCallback({ percent: 70, message: `Getting certificate of ${adminFqdn}` }); done(); },
-                reverseProxy.ensureCertificate.bind(null, fqdn(constants.ADMIN_LOCATION, domainObject), domain, auditSource)
-            ], function (error) {
-                if (error) return callback(error);
-
-                callback(null);
-            });
-        });
-    });
-}