Remove the search button

Hi,

I wish to remove the ‘search’ feature that’s above the lectures on the course descriptions: http://www.korean-courses.com/groups/hangeul-studies/courseware/course

As you can see it doesn’t really fit and has made the layout look really ugly.

Please can you tell me how to remove this feature of the plugin?

Thanks!

http://wordpress.org/extend/plugins/buddypress-courseware/