chore(web): remove stale onboarding code after flow simplification (#1429)

* Initial plan

* refactor(web): remove stale onboarding code

Co-authored-by: tyler-dane <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: tyler-dane <[email protected]>
Co-authored-by: Tyler Dane <[email protected]>

Author: Copilot

packages/web/src/auth/hooks/oauth/useGoogleAuth.ts

@@ -21,9 +21,8 @@ import {
 } from "@web/ducks/events/slices/sync.slice";
 import { useAppDispatch } from "@web/store/store.hooks";
 import { toastDefaultOptions } from "@web/views/Day/components/Toasts";
-import { OnboardingStepProps } from "@web/views/Onboarding";
 
-export function useGoogleAuth(props?: OnboardingStepProps) {
+export function useGoogleAuth() {
   const dispatch = useAppDispatch();
   const { setAuthenticated } = useSession();
   const { markSignupCompleted } = useIsSignupComplete();
@@ -69,8 +68,6 @@ export function useGoogleAuth(props?: OnboardingStepProps) {
 
         markSignupCompleted();
 
-        props?.onNext?.();
-
         const syncResult = await syncLocalEvents();
 
         if (syncResult.success && syncResult.syncedCount > 0) {