Remove unused fetchLiveVaultBalance and its test

includes/utilities.php

@@ -14,11 +14,6 @@
  * @link     https://github.com/ksolomon/Torn-Vault-Tracker
  */
 
-// Test hook for fetchLiveVaultBalance(). When set, this closure is called
-// instead of executeApiCall. Set $GLOBALS['liveBalanceTestHook'] to a
-// closure($url, $apiKey): array in test code. Production code leaves it null.
-$GLOBALS['liveBalanceTestHook'] = $GLOBALS['liveBalanceTestHook'] ?? null;
-
 /**
  * Checks if the database is new and empty.
  *
@@ -343,66 +338,3 @@ function refetchRunningBalances($pdo, $user) {
         $url = $responseData['_metadata']['links']['next'] ?? null;
     } while ($url !== null);
 }
-
-/**
- * Fetch the live vault balance for a user from the v2 /money endpoint.
- *
- * Returns the `money.vault` value as an int, or null if the API call
- * fails, returns invalid JSON, or doesn't include `money.vault`. The
- * result is cached for the duration of the PHP request so multiple
- * callers (e.g., `vaultLoop` for one user, then the all-users sum)
- * don't re-fetch.
- *
- * @param string $user The user whose vault balance to fetch.
- *
- * @return int|null The vault amount in pennies, or null on failure.
- */
-function fetchLiveVaultBalance($user) {
-    static $prodCache = [];   // production: hook is null, plain per-request array
-    static $testCache = null; // test: keyed by hook closure (weakly held)
-
-    if (!array_key_exists($user, USER_KEYS)) {
-        return null;
-    }
-
-    $hook = $GLOBALS['liveBalanceTestHook'] ?? null;
-
-    if ($hook === null) {
-        // Production path: plain array cache.
-        if (array_key_exists($user, $prodCache)) {
-            return $prodCache[$user];
-        }
-        try {
-            $responseData = executeApiCall('https://api.torn.com/v2/user?selections=money', USER_KEYS[$user]);
-            if (!isset($responseData['money']['vault'])) {
-                $prodCache[$user] = null;
-                return null;
-            }
-            $prodCache[$user] = (int)$responseData['money']['vault'];
-            return $prodCache[$user];
-        } catch (Exception $e) {
-            $prodCache[$user] = null;
-            return null;
-        }
-    }
-
-    // Test path: key by hook identity so test scenarios get fresh fetches.
-    if ($testCache === null) {
-        $testCache = new \WeakMap();
-    }
-    if (isset($testCache[$hook]) && array_key_exists($user, $testCache[$hook])) {
-        return $testCache[$hook][$user];
-    }
-    try {
-        $responseData = $hook('https://api.torn.com/v2/user?selections=money', USER_KEYS[$user]);
-        if (!isset($responseData['money']['vault'])) {
-            $testCache[$hook] = [$user => null];
-            return null;
-        }
-        $testCache[$hook] = [$user => (int)$responseData['money']['vault']];
-        return $testCache[$hook][$user];
-    } catch (Exception $e) {
-        $testCache[$hook] = [$user => null];
-        return null;
-    }
-}