Remove the WooCommerce Payments top-level menu item

functions.php

/**
 * In WooCommerce 9.4.1 a new Payments menu item was introduced. For most users, this caused a blank page to be displayed when clicked.
 * In WooCommerce 9.4.2 it was fixed so that it no longer shows a blank page, but instead, redirects you to the Payments tab in the WooCommerce Settings.
 * When you're not using the WooCommerce Payments Payment Gateway, this menu is completely irrelevant and just adds to the existing clutter
 * that WooCommerce already adds into your Dashboard!
 */
function mytheme_remove_payments_menu() {
	remove_menu_page( 'admin.php?page=wc-settings&tab=checkout' );
}
add_action( 'admin_init', 'mytheme_remove_payments_menu' );