Remove the class roster from the class home page
Remove the class roster from the class home page

- Remove the class roster from the bottom of the class home page

- Pivotal tracker story ID: 32737271

- Conflicts:
    app/views/portal/clazzes/show.html.haml

concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse