Remove Okta Verify from Windows workstations (#41201)

## Summary

- Removes the `okta-verify/windows` Fleet-maintained app entry from the
workstations team GitOps configuration
(`it-and-security/teams/workstations.yml`)
- Okta Verify will no longer be available as self-service software or in
the setup experience for Windows workstations
- All other platform configurations (macOS, iOS, Android) for Okta
Verify remain unchanged

## Changes

**`it-and-security/teams/workstations.yml`**: Removed the following
maintained app entry from the `software.fleet_maintained_apps` section:

```yaml
- slug: okta-verify/windows
  self_service: true
  setup_experience: true
  labels_include_any:
    - "x86-based Windows hosts"
  categories:
    - Security
```

---

Built for [Allen
Houchins](https://fleetdm.slack.com/archives/D0AFASNBZMW/p1772924324101579)
by [Kilo for Slack](https://kilo.ai/features/slack-integration)

Co-authored-by: kiloconnect[bot] <240665456+kiloconnect[bot]@users.noreply.github.com>

it-and-security/teams/workstations.yml

@@ -328,13 +328,6 @@ software:
       categories:
         - Security
     # Windows apps
-    - slug: okta-verify/windows # Okta Verify for Windows
-      self_service: true
-      setup_experience: true
-      labels_include_any:
-        - "x86-based Windows hosts"
-      categories:
-        - Security
     - slug: slack/windows # Slack for Windows
       self_service: true
       setup_experience: true