Hard-delete Care remote Queue adapter (Phase 5).

Care Queue Engine is the only path; remove QueueClient, driver config, and remote HTTP tests.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/Care/PlanService.php

@@ -42,7 +42,7 @@ class PlanService
         return in_array($this->planKey($organization), ['pro', 'enterprise'], true);
     }
 
-    /** Lab, pharmacy, billing, and Ladill Queue integration require Pro or Enterprise. */
+    /** Lab, pharmacy, billing, and in-app service queues require Pro or Enterprise. */
     public function canUseProModules(Organization $organization): bool
     {
         return $this->hasPaidPlan($organization);