Do not call starpu_idle_prefetch_task_input_on_node at submission: the requested data may not yet be the right version

src/core/task.c

@@ -590,11 +590,6 @@ int starpu_task_submit(struct starpu_task *task)
 			return -ENODEV;
 		}
 
-		if (task->execute_on_a_specific_worker)
-			/* We already know where it will go, so already push
-			 * idle requests to get the data there */
-			starpu_idle_prefetch_task_input_on_node(task, starpu_worker_get_memory_node(task->workerid));
-
 		/* If this is a continuation, we don't modify the implicit data dependencies detected earlier. */
 		if (!continuation)
 		{