Uninstall Silverlight on OSX

It seems that even Microsoft can't explain how to remove their own software (they omit the first step) so here's how to do it:

sudo rm /var/db/receipts/com.microsoft.SilverlightInstaller.*
sudo rm -rf /Library/Internet\ Plug-Ins/Silverlight.plugin
sudo rm -rf /Library/Receipts/Silverlight.pkg