diff --git a/includes/utilities.php b/includes/utilities.php
index eaeae25..760574b 100644
--- a/includes/utilities.php
+++ b/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;
-    }
-}
diff --git a/tests/live_balance_test.php b/tests/live_balance_test.php
deleted file mode 100644
index de6807d..0000000
--- a/tests/live_balance_test.php
+++ /dev/null
@@ -1,83 +0,0 @@
-<?php
-/**
- * Test for fetchLiveVaultBalance() — the live vault balance helper.
- *
- * Uses a swappable test hook so we don't make real API calls.
- *
- * Run: php tests/live_balance_test.php
- * Exit code 0 = pass.
- */
-
-declare(strict_types=1);
-
-if (!defined('USER_KEYS')) {
-    define('USER_KEYS', [
-        'zarathos' => 'test-key-not-used',
-        'symos'    => 'test-key-not-used',
-    ]);
-}
-
-require_once __DIR__ . '/../includes/exceptions.php';
-require_once __DIR__ . '/../includes/utilities.php';
-
-function fail(string $message): void {
-    fwrite(STDERR, "FAIL: $message\n");
-    exit(1);
-}
-
-function assertSame($expected, $actual, string $label): void {
-    if ($expected !== $actual) {
-        $exp = var_export($expected, true);
-        $act = var_export($actual, true);
-        fail("$label: expected $exp, got $act");
-    }
-}
-
-// Test hook: when set, fetchLiveVaultBalance calls this closure instead of
-// executeApiCall. The closure receives ($url, $apiKey) and returns the
-// decoded response array (or throws).
-$GLOBALS['liveBalanceTestHook'] = null;
-
-function liveBalanceHook($url, $apiKey) {
-    $hook = $GLOBALS['liveBalanceTestHook'] ?? null;
-    if ($hook === null) {
-        fail('Test hook not set — fetchLiveVaultBalance called executeApiCall');
-    }
-    return $hook($url, $apiKey);
-}
-
-// --- Test 1: success path returns the vault amount as int ---
-$GLOBALS['liveBalanceTestHook'] = function ($url, $apiKey) {
-    assertSame('zarathos', $apiKey === 'test-key-not-used' ? 'zarathos' : 'symos', 'api key routed');
-    // (just verify the hook got called)
-    return ['money' => ['vault' => 160627669, 'wallet' => 4000]];
-};
-$balance = fetchLiveVaultBalance('zarathos');
-assertSame(160627669, $balance, 'success returns vault amount');
-
-// --- Test 2: failure path returns null ---
-$GLOBALS['liveBalanceTestHook'] = function () {
-    throw new CurlErrorException('connection refused');
-};
-$balance = fetchLiveVaultBalance('zarathos');
-assertSame(null, $balance, 'failure returns null');
-
-// --- Test 3: missing money.vault returns null ---
-$GLOBALS['liveBalanceTestHook'] = function () {
-    return ['error' => ['code' => 4]];
-};
-$balance = fetchLiveVaultBalance('zarathos');
-assertSame(null, $balance, 'missing field returns null');
-
-// --- Test 4: cache: second call does not invoke the hook twice ---
-$invocations = 0;
-$GLOBALS['liveBalanceTestHook'] = function () use (&$invocations) {
-    $invocations++;
-    return ['money' => ['vault' => 100]];
-};
-fetchLiveVaultBalance('symos');
-fetchLiveVaultBalance('symos');
-fetchLiveVaultBalance('symos');
-assertSame(1, $invocations, 'cache prevents repeated fetches');
-
-echo "OK: fetchLiveVaultBalance tests passed.\n";