Revert "Merge pull request #499 from mozilla/emtwo/CSP"
Revert "Merge pull request #499 from mozilla/emtwo/CSP"

This reverts commit c14f17d77247c6bc6b6593a9ec31e087704f8c7b, reversing
changes made to 3ca6787b7285eb2323879eb67d5e8b6826f60a62.

AdamHillier/activity-stream,JaredKerim-Mozilla/activity-stream,JaredKerim-Mozilla/activity-stream,JaredKerim-Mozilla/activity-stream,sarracini/activity-stream,AdamHillier/activity-stream,sarracini/activity-stream,AdamHillier/activity-stream,rlr/activity-streams,mozilla/activity-stream,AdamHillier/activity-stream,dan-l/activity-stream,mozilla/activity-stream,Mardak/activity-stream,rlr/activity-streams,Mardak/activity-stream,rlr/activity-streams,mozilla/activity-streams,Mardak/activity-stream,dan-l/activity-stream,rlr/activity-streams,Mardak/activity-stream,dan-l/activity-stream,mozilla/activity-streams,sarracini/activity-stream,sarracini/activity-stream,mozilla/activity-stream,JaredKerim-Mozilla/activity-stream,mozilla/activity-stream