How to Hide Repoevo – Plugin Analytics & Keyword Tracking Admin Menus

function plt_hide_repoevo_menus() {
	//Hide "Repoevo".
	remove_menu_page('repoevo');
	//Hide "Repoevo → Monitored Plugins".
	remove_submenu_page('repoevo', 'repoevo_info');
	//Hide "Repoevo → Einstellungen".
	remove_submenu_page('repoevo', 'repoevo_settings');
	//Hide "Repoevo → Readme".
	remove_submenu_page('repoevo', 'repoevo_readme');
	//Hide "Repoevo → Upgrade".
	remove_submenu_page('repoevo', 'repoevo_upgrade');
}

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

Where do I put this code?