How to Hide Coding Blocks Admin Menus

function plt_hide_coding_blocks_menus() {
	//Hide "Coding Blocks".
	remove_menu_page('coding-blocks');
	//Hide "Coding Blocks → Coding Blocks".
	remove_submenu_page('coding-blocks', 'coding-blocks');
	//Hide "Coding Blocks → New Snippet".
	remove_submenu_page('coding-blocks', 'coding-blocks-new-snippet');
	//Hide "Coding Blocks → All Snippets".
	remove_submenu_page('coding-blocks', 'coding-blocks-snippets');
	//Hide "Coding Blocks → Theme Preview".
	remove_submenu_page('coding-blocks', 'coding-blocks-preview');
	//Hide "Coding Blocks → Plugin Options".
	remove_submenu_page('coding-blocks', 'coding-blocks-settings');
}

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

Where do I put this code?