chore(deadcode): update keeper test for post-trim allowlist

The CL-6815 trim removed the three usage-formatter exports; the scoped
exemption keeper now pins the two remaining constants flags plus the
negative sibling probe.

Author: TheGreatAxios

scripts/check-dead-exports.test.ts

@@ -28,20 +28,12 @@ import {
 const repoRoot = join(import.meta.dir, "..");
 
 // A probe dead export in one of the scoped files must fail the guard: the
-// exact-name exemptions cover only the five deferred-cleanup flags, never
-// the whole module.
+// exact-name exemptions cover only the remaining deferred-cleanup flags
+// (the usage-formatter flags were removed with their exports by the CL-6815
+// trim), never the whole module.
 describe("scoped exemptions", () => {
   test("the real allowlist covers the named flags but not a sibling probe", () => {
     const rules = loadAllowlist();
-    expect(
-      isAllowlisted(rules, "src/auth/codex/usage.ts", "fetchCodexUsage"),
-    ).toBe(true);
-    expect(
-      isAllowlisted(rules, "src/auth/codex/usage.ts", "fetchCodexModels"),
-    ).toBe(true);
-    expect(isAllowlisted(rules, "src/auth/xai/usage.ts", "fetchXaiUsage")).toBe(
-      true,
-    );
     expect(
       isAllowlisted(
         rules,