The procedure to remove a Blogger blog differs based on whether the blog is hosted on BlogSpot or your own server. If hosted on your own server, you can manually delete the blogging pages and then delete the Blogger blog.
Until recently, if your blog was hosted on BlogSpot, you had to manipulate the Blogger template to remove the files. However, with recent changes, deleting the Blogger blog also deletes the pages on BlogSpot.
To delete a Blogger blog, access the Settings view, scroll down to the bottom and click the Delete this Blog button. You are then asked to confirm your decision. Once you do, the blog is removed from Blogger’s data stores, and blog pages are removed from BlogSpot. If you hosted the blog on your server, you must manually remove the pages.