test: remove dead symbols in onboarding e2e spec

biome noUnusedVariables flagged two unused symbols in onboarding.spec.ts (const FIRST_RUN_KENNY, function getMockProfile). Under pull_request builds biome escalates these to errors, failing Desktop Core (biome check .). Removing them clears the gate.

Co-authored-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Taylor Ho <taylorkmho@gmail.com>

desktop/tests/e2e/onboarding.spec.ts

@@ -25,10 +25,6 @@ const FIRST_RUN_ALICE = {
   ...TEST_IDENTITIES.alice,
   username: "",
 };
-const FIRST_RUN_KENNY = {
-  ...TEST_IDENTITIES.tyler,
-  username: "Kenny QA",
-};
 
 type TestIdentity = {
   privateKey: string;
@@ -513,27 +509,6 @@ async function expectWelcomeGuideIntro(
   }
 }
 
-async function getMockProfile(page: Page) {
-  return page.evaluate(async () => {
-    const invoke = (
-      window as Window & {
-        __BUZZ_E2E_INVOKE_MOCK_COMMAND__?: (
-          command: string,
-          payload?: Record<string, unknown>,
-        ) => Promise<unknown>;
-      }
-    ).__BUZZ_E2E_INVOKE_MOCK_COMMAND__;
-    if (!invoke) {
-      throw new Error("Mock invoke bridge is unavailable.");
-    }
-
-    return (await invoke("get_profile")) as {
-      avatar_url: string | null;
-      display_name: string | null;
-    };
-  });
-}
-
 async function expectIncompleteOnboarding(page: Page) {
   await expect(page.getByTestId("onboarding-gate")).toBeVisible();
   await expectShellHidden(page);