How to Hide Lazy Blocks Admin Menus

function plt_hide_lazy_blocks_menus() {
	//Hide "Lazy Blocks".
	remove_menu_page('edit.php?post_type=lazyblocks');
	//Hide "Lazy Blocks → Blocks".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'edit.php?post_type=lazyblocks');
	//Hide "Lazy Blocks → Add Block".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'post-new.php?post_type=lazyblocks');
	//Hide "Lazy Blocks → Templates".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'edit.php?post_type=lazyblocks_templates');
	//Hide "Lazy Blocks → Export / Import".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'lazyblocks_tools');
	//Hide "Lazy Blocks → Documentation".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'https://www.lazyblocks.com/docs/overview/?utm_source=plugin&utm_medium=admin_menu&utm_campaign=docs&utm_content=3.8.3');
	//Hide "Lazy Blocks → Go Pro".
	remove_submenu_page('edit.php?post_type=lazyblocks', 'https://www.lazyblocks.com/pro/?utm_source=plugin&utm_medium=admin_menu&utm_campaign=go_pro&utm_content=3.8.3');
}

add_action('admin_menu', 'plt_hide_lazy_blocks_menus', 13);

Where do I put this code?