Hi there, alternatively, you can also remove the bloggers badges on the sites you want to be removed. If bloggers' crawler can't found the badges in your sites, definitely your sites will be deleted here.
To remove the Bloggers badge from your site is not the solution. I have purchased custom domain for my old blogspot blog, and have connected it here. Now I have two blogs in Blogger's dashboard, with two domains, i.e. one .blogspot.com domain and the second with .net domain leading to the same blog. If I remove the badge from my blog, then nothing will remain here. I'll remove one badge but will loss two blogs :(
First of all, remove the bloggers badge from your blog. Yes I'm talking about the badge that you need to add while adding a blog. Now visit your bloggers profile and then go to Dashboard- Manage blogs. Then click on the Edit option which will be at the right side of your blog. change url of your blog. update blog At the editing options, you will see a button "Request Admin Approval". Just click on that button and you are done. Now your blog will be removed from bloggers.com after one or two days.