Call PID clean up on checkpoint and restore timeout

Make sure dump is removed, since the worker exit
signal may come after the clean up of checkpoint data and
be not effective.

memcr.c

@@ -2512,6 +2512,7 @@ static int checkpoint_procedure_service(int checkpointSocket, int cd, int pid, i
 		// unable to read response from worker, kill both
 		kill(pid, SIGKILL);
 		kill(worker_pid, SIGKILL);
+		cleanup_pid(pid);
 		send_response_to_client(cd, MEMCR_ERROR_GENERAL);
 		return MEMCR_ERROR_GENERAL;
 	}
@@ -2551,6 +2552,7 @@ static void restore_procedure_service(int cd, struct service_command svc_cmd, in
 		// unable to read response from worker, kill both
 		kill(svc_cmd.pid, SIGKILL);
 		kill(worker_pid, SIGKILL);
+		cleanup_pid(svc_cmd.pid);
 		ret = -1;
 	}