We already do this on web, since there we render a separate React component for community items (CommunityDrawerItemCommunity) than channels (CommunityDrawerItem).
On native we use the same component. We shouldn't be showing any options for channels, but we currently show an option to admins to manage the roles. Roles should only be managed on a per-community basis, so this diff hides the "three dots" button for all channels. This results in a much cleaner look with fewer "three dots" buttons.
