Hide the "Payment Methods" tab from the WooCommerce My Account page

hide-payment-methods-tab.php

<?php

add_filter( 'woocommerce_account_menu_items', 'remove_payment_methods_tab_my_account', 999 );
 
function remove_payment_methods_tab_my_account( $items ) {
 unset($items['payment-methods']);
 return $items;
}