Revert "Pagespeed enabled in nginx-extras. Close #30"

This reverts commit 77e5069493d3d8aa9c8c1c826fa325d990dbcd4a.
Nginx 1.4.0 - Squeeze

* SPDY enabled in nginx-full, nginx-passenger and nginx-extras
  * HTTP Gunzip enabled in nginx-extras
  * minor upgrades : headers-more, echo, Lua, Push stream, Pinba, Passenger