Tips on Customizing Locations and Areas – Leaflet Map with Region Tabs

How to Hide Locations and Areas - Leaflet Map with Region Tabs Admin Menus

function plt_hide_locations_and_areas_menus() {
	//Hide "Locations and Areas".
	remove_menu_page('edit.php?post_type=laa-location');
	//Hide "Locations and Areas → All locations".
	remove_submenu_page('edit.php?post_type=laa-location', 'edit.php?post_type=laa-location');
	//Hide "Locations and Areas → Add new location".
	remove_submenu_page('edit.php?post_type=laa-location', 'post-new.php?post_type=laa-location');
	//Hide "Locations and Areas → Areas".
	remove_submenu_page('edit.php?post_type=laa-location', 'edit-tags.php?taxonomy=laa-area&post_type=laa-location');

	//Hide "Settings → Locations and Areas".
	remove_submenu_page('options-general.php', 'locations_and_areas');
	//Hide "Settings → Upgrade".
	remove_submenu_page('options-general.php', 'locations_and_areas-pricing');
}

add_action('admin_menu', 'plt_hide_locations_and_areas_menus', 1000000000);

Where do I put this code?

How to Hide the "Location" Meta Box

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

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

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