How To Manage Search Engines in Google Chrome for Windows

By Scott Orgera, About.com Guide

As you can see in the example above, ebay.com is now set as Chrome's default search engine. To remove/uninstall any search engines, other than the default option, first click on its name to highlight the appropriate row. Next, click on the 'X' that is located directly to the right of the Make default button. The highlighted search engine will be instantly removed from Chrome's list of available choices.