How to Hide Poll Maker Admin Menus

function plt_hide_poll_maker_menus() {
	//Hide "Poll Maker".
	remove_menu_page('poll-maker-ays');
	//Hide "Poll Maker → All Polls".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays');
	//Hide "Poll Maker → Add new".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-add-new');
	//Hide "Poll Maker → Categories".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-cats');
	//Hide "Poll Maker → Results 0".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-results');
	//Hide "Poll Maker → Custom Fields".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-formfields');
	//Hide "Poll Maker → General Settings".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-settings');
	//Hide "Poll Maker → How to use".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-how-to-use');
	//Hide "Poll Maker → Our products".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-featured-plugins');
	//Hide "Poll Maker → PRO features".
	remove_submenu_page('poll-maker-ays', 'poll-maker-ays-pro-features');
}

add_action('admin_menu', 'plt_hide_poll_maker_menus', 131);

Where do I put this code?