updateServiceConfig: remove retry from platform code

src/settings.js

@@ -113,6 +113,8 @@ exports = module.exports = {
     _setApiServerOrigin: setApiServerOrigin
 };
 
+const NOOP_CALLBACK = function (error) { if (error) debug(error); };
+
 var addons = require('./addons.js'),
     assert = require('assert'),
     backups = require('./backups.js'),
@@ -452,7 +454,7 @@ function setPlatformConfig(platformConfig, callback) {
 
         callback(null); // updating service config can take a while
 
-        addons.updateServiceConfig(platformConfig);
+        addons.updateServiceConfig(platformConfig, NOOP_CALLBACK);
     });
 }