How to Hide MembershipWorks - Membership, Events & Directory Admin Menus

function plt_hide_memberfindme_menus() {
	//Hide "Membership Works".
	remove_menu_page('sf_admin_page');
	//Hide "Membership Works → Membership Works".
	remove_submenu_page('sf_admin_page', 'sf_admin_page');
	//Hide "Membership Works → Members".
	remove_submenu_page('sf_admin_page', 'sf_admin_members');
	//Hide "Membership Works → Folders".
	remove_submenu_page('sf_admin_page', 'sf_admin_folders');
	//Hide "Membership Works → Labels  Membership".
	remove_submenu_page('sf_admin_page', 'sf_admin_labels');
	//Hide "Membership Works → Event List".
	remove_submenu_page('sf_admin_page', 'sf_admin_event-list');
	//Hide "Membership Works → Event Calendar".
	remove_submenu_page('sf_admin_page', 'sf_admin_calendar');
	//Hide "Membership Works → Forms Carts Donations".
	remove_submenu_page('sf_admin_page', 'sf_admin_forms');
	//Hide "Membership Works → Jobs/Other Boards".
	remove_submenu_page('sf_admin_page', 'sf_admin_boards');
	//Hide "Membership Works → Customization".
	remove_submenu_page('sf_admin_page', 'sf_admin_custom');
	//Hide "Membership Works → Help".
	remove_submenu_page('sf_admin_page', 'sf_admin_help');
	//Hide "Membership Works → Organization Settings".
	remove_submenu_page('sf_admin_page', 'sf_admin_account');
	//Hide "Membership Works → Plugin Settings".
	remove_submenu_page('sf_admin_page', 'sf_admin_options');
}

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

Where do I put this code?