Even if MS doesn't include IE with their system, people will still be going out there to search and install IE because of not wanting to change. It will be like extracting bone marrow from a thigh bone without any tools, referring to MS and IE situation.
Again "Internet Explorer for exploring the Internet" MS marketing trick has a lot of users fooled. I'm a web developer myself and i know how hectic it is to have your website working perfect on all browsers except IE.