Remove update menu items on Windows

These will be re-added before the first release where squirrel update
assets are available on the release.

menus/win32.cson

@@ -164,10 +164,6 @@
       { label: 'View &License', command: 'application:open-license' }
       { label: "VERSION", enabled: false }
       { type: 'separator' }
-      { label: 'Restart and Install Update', command: 'application:install-update', visible: false}
-      { label: 'Check for Update', command: 'application:check-for-update', visible: false}
-      { label: 'Downloading Update', enabled: false, visible: false}
-      { type: 'separator' }
       { label: '&Documentation', command: 'application:open-documentation' }
       { label: 'Roadmap', command: 'application:open-roadmap' }
       { label: 'Frequently Asked Questions', command: 'application:open-faq' }