[Easy][Dynamo][TVM] remove unnecessary prints (pytorch#142445)

This PR intends to remove the unnecessary prints in the auto-scheduler of dynamo's TVM backend.

Pull Request resolved: pytorch#142445
Approved by: https://github.com/jansel

Author: shingjan

torch/_dynamo/backends/tvm.py

@@ -63,10 +63,6 @@ def tvm(
             tasks, task_weights = auto_scheduler.extract_tasks(
                 mod["main"], params, target
             )
-            for task in tasks:
-                print(task.compute_dag)
-            else:
-                print("No tasks")
             if len(tasks) != 0:
                 tuner = auto_scheduler.TaskScheduler(tasks, task_weights)
                 if not os.path.exists(log_file):