Remove Search Bar in Product

I have had the same issue with Gridmarket & SimpleMarket -- cannot remove the search bar even if I delete search.php. CSS code below.

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Theme Name: Product Child
Theme Date: 11/05/2010
Version: 3.1.5
Theme URI: https://premium.wpmudev.org/
Description: Product is a clean theme designed to feature products and services
Author: Tammie Lister - WPMU DEV - The WordPress Experts
Author URI: https://premium.wpmudev.org

Tags: buddypress, one column, 3 columns, threaded comments, custom colours, theme options

Uses BP-Default theme files and styling for BuddyPress components with some customisation for theme.
Included in theme to allow for own child themes rather than being child of BP-Default

The CSS, XHTML and design is released under GPL:
http://www.opensource.org/licenses/gpl-license.php

Template: product
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#search-bar {
display: none !important;
}

#signup-section {
display: none !important;
}