Theme Horse

Hi Gerald,
You just view to our demo site and the search is clickable at https://www.themehorse.com/preview/ultimate-pro
Just view this screenshot. Its clickable.
http://www.awesomescreenshot.com/image/358789/496111a6c806d7ca5171f6dc4f5bb434

Or are you trying to say some other things? Just make it clear and also provide your site Url too.

To remove the search from the header go to dashboard -> appearance -> theme options -> design options -> custom header and view this below screenshot
http://www.awesomescreenshot.com/image/358797/1826609926892aa1b94ef9bc345dc521
Hope this may help you
Thank you!