Cleanup Expense Code in post blocks and remove single use function since stripe payments get reconciled during nightly cron

functions/payments.php

@@ -1,22 +0,0 @@
-<?php
-
-/*
- * Extract the actual Stripe processing fee from a PaymentIntent.
- * PI must have been created/retrieved with
- * 'expand' => ['latest_charge.balance_transaction'].
- * Returns ['fee' => float, 'currency' => 'USD'] or false if unavailable.
- */
-function getStripeGatewayFee($payment_intent)
-{
-    $bt = $payment_intent->latest_charge->balance_transaction ?? null;
-
-    // Not expanded or not yet created (async payment methods)
-    if (!$bt || is_string($bt)) {
-        return false;
-    }
-
-    return [
-        'fee' => round($bt->fee / 100, 2),
-        'currency' => strtoupper($bt->currency),
-    ];
-}