Previously had Spam Free WordPress plugin installed on my WP 3.2.1. I recently disabled then deleted it due to a failed plugin upgrade ("folder not found"). After deleting the plugin, I noticed that all my pages now have a Custom Field titled "sfw_pwd" with different values for each. Is there a way to completely remove the SFW remnants that are haunting my WP site?
I know at least part of the answer to this is probably "upgrade to the latest WordPress" and I will at some point. However, right now I can't go into the upgrade process. Any ideas?