remove piopm file in tl-install folder

Author: Jason2866

platform.py

@@ -110,6 +110,15 @@ def wrapper(*args, **kwargs):
     return wrapper
 
 
+@safe_file_operation
+def safe_remove_file(path: str) -> bool:
+    """Safely remove a file with error handling."""
+    if os.path.exists(path) and os.path.isfile(path):
+        os.remove(path)
+        logger.debug(f"File removed: {path}")
+    return True
+
+
 @safe_file_operation
 def safe_remove_directory(path: str) -> bool:
     """Safely remove directories with error handling."""
@@ -299,6 +308,8 @@ def _install_tl_install(self, version: str) -> bool:
                     # Copy tool-esp_install content to tl-install location
                     if safe_copy_directory(tl_install_path, old_tl_install_path):
                         logger.info(f"Content copied from {tl_install_name} to old tl-install location")
+                        tl_piopm_path = os.path.join(old_tl_install_path, ".piopm")
+                        safe_remove_file(tl_piopm_path)
                     else:
                         logger.warning(f"Failed to copy content to old tl-install location")
                 return True