With the next functions you will be able to remove all visual composer templates.
COPY CODE
function my_custom_template_modify_array( $data ) {
return array(); // This will remove all default templates. Basically, you should use native PHP functions to modify existing array and then return it.
}
function trigger_at_init(){
add_filter( 'vc_load_default_templates', 'my_custom_template_modify_array' ); // Hook in
remove_action('vc_load_default_templates_action','kleo_custom_template_for_vc');
}
add_action('vc_before_init_base', 'trigger_at_init');
NOTE: Kleo child theme needs to be installed and activated
The codes will be added to wp-content/themes/kleo-child/functions.php
References : https://wpbakery.atlassian.net/wiki/pages/viewpage.action?pageId=524300
Cheers
R.