Remove obsolete second subscription and entitlement refresh call (#2613)

Task/Issue URL:
https://app.asana.com/0/1203936086921904/1207025896069381/f

**Description**:
The following call is obsolete as subscription and entitlement refresh
is already handled AppDelegate. Additionally
refreshSubscriptionAndEntitlements() method is deprecated and going to
be removed as it has baked in side effect of signing out user when the
subscription is found expired.

**Steps to test this PR**:
1. Purchase or activate subscription
2. Make app inactive and active again
3. Ensure that there are singular calls to auth and subscription
endpoints for fetching entitlements and subscription infor

---
###### Internal references:
[Pull Request Review
Checklist](https://app.asana.com/0/1202500774821704/1203764234894239/f)
[Software Engineering
Expectations](https://app.asana.com/0/59792373528535/199064865822552)
[Technical Design
Template](https://app.asana.com/0/59792373528535/184709971311943)
[Pull Request
Documentation](https://app.asana.com/0/1202500774821704/1204012835277482/f)

DuckDuckGo/NetworkProtection/AppTargets/BothAppTargets/NetworkProtectionAppEvents.swift

@@ -81,10 +81,6 @@ final class NetworkProtectionAppEvents {
     func applicationDidBecomeActive() {
         Task { @MainActor in
             await featureVisibility.disableIfUserHasNoAccess()
-
-#if SUBSCRIPTION
-            await AccountManager(subscriptionAppGroup: Bundle.main.appGroup(bundle: .subs)).refreshSubscriptionAndEntitlements()
-#endif
         }
     }