Remove an old Aphlict-related test page.

Summary: I don't believe that this HTML serves a purpose any longer. In addition, loading https://secure.phabricator.com/rsrc/swf/test.html doesn't seem particularly useful.

Test Plan: N/A

Reviewers: epriestley, Blessed Reviewers

Reviewed By: epriestley, Blessed Reviewers

Subscribers: epriestley, Korvin

Differential Revision: https://secure.phabricator.com/D9691