How to Hide WP Leads Builder For Any CRM Admin Menus

function plt_hide_wp_leads_builder_any_crm_menus() {
	//Hide "Leads Builder For Any CRM".
	remove_menu_page('lb-crmconfig');
	//Hide "Leads Builder For Any CRM → Leads Builder For Any CRM".
	remove_submenu_page('lb-crmconfig', 'lb-crmconfig');
	//Hide "Leads Builder For Any CRM → Upgrade to PRO".
	remove_submenu_page('lb-crmconfig', 'wp-pro-page');
	//Hide "Leads Builder For Any CRM → HIRE US".
	remove_submenu_page('lb-crmconfig', 'wp-hireus-page');
	//Hide "Leads Builder For Any CRM → CRM Forms".
	remove_submenu_page('lb-crmconfig', 'lb-crmforms');
	//Hide "Leads Builder For Any CRM → WP Users Sync".
	remove_submenu_page('lb-crmconfig', 'lb-usersync');
	//Hide "Leads Builder For Any CRM → Ecom Integ".
	remove_submenu_page('lb-crmconfig', 'lb-ecominteg');
	//Hide "Leads Builder For Any CRM → CRM Configuration".
	remove_submenu_page('lb-crmconfig', 'lb-crmconfig');
	//Hide "Leads Builder For Any CRM → Settings".
	remove_submenu_page('lb-crmconfig', 'lb-droptable');
	//Hide "Leads Builder For Any CRM →".
	remove_submenu_page('lb-crmconfig', 'lb-create-leadform');
	//Hide "Leads Builder For Any CRM →".
	remove_submenu_page('lb-crmconfig', 'lb-create-contactform');
	//Hide "Leads Builder For Any CRM →".
	remove_submenu_page('lb-crmconfig', 'lb-usermodulemapping');
	//Hide "Leads Builder For Any CRM →".
	remove_submenu_page('lb-crmconfig', 'lb-mailsourcing');
	//Hide "Leads Builder For Any CRM →".
	remove_submenu_page('lb-crmconfig', 'wp-leads-builder-any-crm');
}

add_action('admin_menu', 'plt_hide_wp_leads_builder_any_crm_menus', 11);

Where do I put this code?