How to Hide Full Width Responsive Slider Wp Admin Menus

function plt_hide_full_width_responsive_slider_wp_menus() {
	//Hide "Full Width Slider".
	remove_menu_page('responsive_full_width_slider_wp');
	//Hide "Full Width Slider → Slider Settings".
	remove_submenu_page('responsive_full_width_slider_wp', 'responsive_full_width_slider_wp');
	//Hide "Full Width Slider → Manage Images".
	remove_submenu_page('responsive_full_width_slider_wp', 'responsive_full_width_slider_wp_media_management');
	//Hide "Full Width Slider → Preview Slider".
	remove_submenu_page('responsive_full_width_slider_wp', 'responsive_full_width_slider_wp_media_preview');
}

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

Where do I put this code?