Revert "added prune method"
Revert "added prune method"

This reverts commit 70789373112fcbdad2ffeaa307bbaa11ec36e597.

diaspora/diaspora,geraspora/diaspora,Flaburgan/diaspora,geraspora/diaspora,diaspora/diaspora,Muhannes/diaspora,SuperTux88/diaspora,despora/diaspora,SuperTux88/diaspora,jhass/diaspora,KentShikama/diaspora,spixi/diaspora,spixi/diaspora,Amadren/diaspora,geraspora/diaspora,Amadren/diaspora,despora/diaspora,despora/diaspora,despora/diaspora,Muhannes/diaspora,SuperTux88/diaspora,KentShikama/diaspora,Amadren/diaspora,Muhannes/diaspora,Flaburgan/diaspora,SuperTux88/diaspora,spixi/diaspora,spixi/diaspora,KentShikama/diaspora,diaspora/diaspora,Amadren/diaspora,Flaburgan/diaspora,jhass/diaspora,Flaburgan/diaspora,jhass/diaspora,geraspora/diaspora,jhass/diaspora,Muhannes/diaspora,KentShikama/diaspora,diaspora/diaspora