Hide Automattic's Poll Daddy plugin's menu items from a specific user role. Using the normal remove_menu_page() and remove_submenu_page() doesn't work in this instance and I couldn't find a solid solution online, so here's what I came up with after digging into the Poll Daddy plugin itself.

hide-polldaddy-menu-items.php

<?php
function remove_menus_for_USER_ROLE () {
	if ( is_user_logged_in() && current_user_can('USER_ROLE') ) {
		global $menu;
		$restricted = array(
			//__( 'Settings' ), //Uncomment if you still have POLLS showing up under settings, it really depends on the user role you're targeting.
			__( 'Feedback' ),
			__( 'Polls' ),
			__( 'Ratings' ),
		);
		end ($menu);
		while (prev($menu)){
			$value = explode(' ',$menu[key($menu)][0]);
			if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);}
		}
	}
}
add_action('admin_menu', 'remove_menus_for_USER_ROLE', 999);
//To get this to work you'll need to replace USER_ROLE with whatever the user role you're targeting is.
//I did it for a custom 'vendor' user role created by WCMp (WooCommerce MarketPlace).
//While the WCMp plugin itself hides almost everything necessary, Poll Daddy by Automattic was still showing up.
?>