Revert "fix se (PaddlePaddle#61640) (PaddlePaddle#61702)"

This reverts commit c0f4a49.

python/paddle/distributed/fleet/utils/fs.py

@@ -18,7 +18,6 @@
 import os
 import re
 import shutil
-import subprocess
 import time
 
 # (TODO: GhostScreaming) It will be removed later.
@@ -514,34 +513,6 @@ def _run_cmd(self, cmd, redirect_stderr=False, retry_times=5):
 
         return ret, output.splitlines()
 
-    def _run_safe_cmd(self, cmd, redirect_stderr=False, retry_times=5):
-        exe_cmd = [self._base_cmd] + cmd.split()
-        ret = 0
-        output = ""
-        retry_sleep_second = 3
-        for x in range(retry_times + 1):
-            try:
-                process = subprocess.run(
-                    exe_cmd,
-                    check=True,
-                    stdout=subprocess.PIPE,
-                    stderr=subprocess.STDOUT
-                    if redirect_stderr
-                    else subprocess.PIPE,
-                    text=True,
-                )
-                output = process.stdout
-                break
-            except subprocess.CalledProcessError as e:
-                ret = e.returncode
-                output = e.output
-                time.sleep(retry_sleep_second)
-            except Exception as e:
-                break
-
-        if ret == 134:
-            raise FSShellCmdAborted(cmd)
-
     @_handle_errors()
     def list_dirs(self, fs_path):
         """
@@ -611,8 +582,8 @@ def ls_dir(self, fs_path):
         return self._ls_dir(fs_path)
 
     def _ls_dir(self, fs_path):
-        cmd = ["-ls", fs_path]
-        ret, lines = self._run_safe_cmd(cmd)
+        cmd = f"ls {fs_path}"
+        ret, lines = self._run_cmd(cmd)
 
         if ret != 0:
             raise ExecuteError(cmd)