fix: Use remove_all from file_manager
diff --git a/erpnext/regional/italy/utils.py b/erpnext/regional/italy/utils.py
index ba1aeaf..024f820 100644
--- a/erpnext/regional/italy/utils.py
+++ b/erpnext/regional/italy/utils.py
@@ -6,7 +6,7 @@
from frappe.utils import flt, cstr
from erpnext.controllers.taxes_and_totals import get_itemised_tax
from frappe import _
-from frappe.core.doctype.file.file import remove_file
+from frappe.utils.file_manager import remove_file
from six import string_types
from frappe.desk.form.load import get_attachments
from erpnext.regional.italy import state_codes