Remove obsolete test for redirect files in output
Remove obsolete test for redirect files in output

- Previously introduced with 53997ff
- Obviated w/ dita-ot/dita-ot.github.io@9b63b55

Signed-off-by: Roger Sheen <a61a1add71dadc74037ae5e44ee30713db9a7451@infotexture.net>

infotexture/docs,infotexture/docs,dita-ot/docs