Removed public/community timeline for non-admins

• Removed:
- public/community timeline for non-admins
- links to the page
- web sockets for the page

app/javascript/gabsocial/components/sidebar_xs.js

@@ -130,12 +130,6 @@ class SidebarXS extends ImmutablePureComponent {
         onClick: this.handleSidebarClose,
         title: intl.formatMessage(messages.preferences),
       },
-      {
-        icon: 'community',
-        to: '/timeline/all',
-        onClick: this.handleSidebarClose,
-        title: 'All'
-      },
       {
         icon: 'list',
         to: '/lists',