Can't delete the "web development" category

I used the "best of.." feature to subscribe to a bunch of "web development" feeds. I quickly realized that I didn't want any of them. Seeing that there was no easy way to unsubscribe to ALL of them in Feedly, I unsubscribed to the feeds in google reader. The problem is, the feeds remained in feedly.

1) Shouldn't feedly have synced with the edits I made on google reader?

2) How do I quickly unsubscribe to the feeds and delete the category all together? In order to get rid of the category I had to manually unsubscribe to each in Feedly (after doing so in google reader) but I was wondering if there's a better way.