Remove cancel job logging

- Silent job cancellation operations
- No logging for cancel commands sent to workers
- Clean operation without console noise

vidai/cluster_master.py

@@ -647,8 +647,6 @@ class ClusterMaster:
         client_id = job_info['client_id']
         worker_key = job_info['worker_key']
 
-        print(f"Cancelling job {job_id} on worker {worker_key}")
-
         if client_id == "local":
             # Send cancel to local backend
             try:
@@ -664,7 +662,6 @@ class ClusterMaster:
                     data={'job_id': job_id}
                 )
                 backend_comm.send_message(cancel_message)
-                print(f"Sent cancel request for job {job_id} to local backend")
             except Exception as e:
                 print(f"Failed to send cancel to local backend: {e}")
         else:
@@ -675,7 +672,6 @@ class ClusterMaster:
                         'type': 'cancel_job',
                         'job_id': job_id
                     }))
-                    print(f"Sent cancel request for job {job_id} to client {client_id}")
                 except Exception as e:
                     print(f"Failed to send cancel to client {client_id}: {e}")
                     if client_id in self.clients: