How to Hide easy.jobs Admin Menus

function plt_hide_easyjobs_menus() {
	//Hide "EasyJobs".
	remove_menu_page('easyjobs-admin');
	//Hide "EasyJobs → Dashboard".
	remove_submenu_page('easyjobs-admin', 'easyjobs-admin');
	//Hide "EasyJobs → All Jobs".
	remove_submenu_page('easyjobs-admin', 'easyjobs-all-jobs');
	//Hide "EasyJobs → Create Job".
	remove_submenu_page('easyjobs-admin', 'easyjobs');
	//Hide "EasyJobs → Candidates".
	remove_submenu_page('easyjobs-admin', 'easyjobs-candidates');
	//Hide "EasyJobs → Settings".
	remove_submenu_page('easyjobs-admin', 'admin.php?page=easyjobs#/settings');
}

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

Where do I put this code?