How to Hide CMP - Coming Soon & Maintenance Plugin Admin Menus

function plt_hide_cmp_coming_soon_maintenance_menus() {
	//Hide "CMP Settings".
	remove_menu_page('cmp-settings');
	//Hide "CMP Settings → CMP Basic Setup".
	remove_submenu_page('cmp-settings', 'cmp-settings');
	//Hide "CMP Settings → CMP Advanced Setup".
	remove_submenu_page('cmp-settings', 'cmp-advanced');
	//Hide "CMP Settings → CMP Subscribers".
	remove_submenu_page('cmp-settings', 'cmp-subscribers');
	//Hide "CMP Settings → CMP Translation".
	remove_submenu_page('cmp-settings', 'cmp-translate');
	//Hide "CMP Settings → Upload CMP Theme".
	remove_submenu_page('cmp-settings', 'cmp-upload-theme');
	//Hide "CMP Settings → CMP Help".
	remove_submenu_page('cmp-settings', 'cmp-help');
}

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

Where do I put this code?