Version: 1.3 Disable the search capabilities of WordPress.
No. This only disables WordPress's capabilities with regards to search.
There are two likely reasons:
get_search_form()to get the search form). There is no way for this plugin to prevent this hardcoded form from being displayed.
get_search_form()and either your currently active theme or its parent theme (if applicable) contains a
searchform.phptemplate file. Due to the way WordPress is currently coded (still as of WP 3.3), there is no way to prevent WordPress from displaying this file (which contains the markup for the search form). You must rename or remove that template file from both the parent and child themes. Otherwise they will likely be used by the theme to display the search form.
In either case, the form won't work (thanks to this plugin), but it will still be displayed. See http://core.trac.wordpress.org/ticket/13239 for my patch that would allow plugins to hook a filter in locate_template() to "hide" an existing template file from being detected by WordPress (among other things the filter would allow).
See the second bullet item in the previous FAQ question for an explanation.
There is a filter that can be hooked to suppress that admin notice. Add to your active theme's functions.php file or in a site-specific plugin:
add_filter( 'c2c_disable_search_hide_admin_nag', '__return_true' );