Comment on WordPress Widgets Tutorial by Norman Bourdon.

WordPress SEO Widget We are trying to use you product to update my PR4 website because the SEO features maybe of value, but would like to remove some items to make the site look less like a blog.

I have set the format to a single column but would like to remove from the “Leave a reply …” to the “Recent Comments” section

Is there a way to do this with the site setup options or do I need to edit (remove) code.
Tried to remove some code in the side bar but ended getting error messages. Can you let me know what to modify. (Sorry I am a marketer not tech person)