I tried to install Phusion Passenger and since I had less than 1GB free memory it recommended temporarily adding swap space with there commands:
sudo dd if=/dev/zero of=/swap bs=1M count=1024 sudo mkswap /swap sudo swapon /swap
Passenger installed successfully so do I now have to disable that swap space - how? It didn't say anything about reverting but I think it should because it said "temporarily add swap space". How do I negate this effect now?