Tips on Customizing Logo Slider – Logo Carousel, Logo Showcase & Client Logo Slider Plugin

How to Hide Logo Slider Admin Menus

function plt_hide_logo_slider_wp_menus() {
	//Hide "Logo Slider".
	remove_menu_page('edit.php?post_type=logosliderwp');
	//Hide "Logo Slider → All Logos".
	remove_submenu_page('edit.php?post_type=logosliderwp', 'edit.php?post_type=logosliderwp');
	//Hide "Logo Slider → Add New Logo".
	remove_submenu_page('edit.php?post_type=logosliderwp', 'post-new.php?post_type=logosliderwp');
	//Hide "Logo Slider → Categories".
	remove_submenu_page('edit.php?post_type=logosliderwp', 'edit-tags.php?taxonomy=logosliderwpcat&post_type=logosliderwp');
	//Hide "Logo Slider → Shortcode Generator".
	remove_submenu_page('edit.php?post_type=logosliderwp', 'edit.php?post_type=lgx_lsp_shortcodes');
	//Hide "Logo Slider → Usage & Help".
	remove_submenu_page('edit.php?post_type=logosliderwp', 'logosliderwphelpuage');
}

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

Where do I put this code?

How to Hide the "Brand Logo" Meta Box

function plt_hide_logo_slider_wp_metaboxes() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Hide the "Brand Logo" meta box.
	remove_meta_box('postimagediv', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_logo_slider_wp_metaboxes', 20);