Remove search title and info from the search result

When you apply the patch #21 from #1166114: Manage Displays Search Results doesn't manage the display of the search results you are able to control the search result via Display Suite but the problem is that you also get the title and the info from the search result, that's not cool. So I added the template_preprocess_search_result function to remove the title and the info so that we can completely control the search result via DS.

And I added a missing star in a function comment.