fix: remove file from the disk after the completion of reposting

(cherry picked from commit fb330d1)

erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py

@@ -286,6 +286,7 @@ def repost(doc):
 		repost_gl_entries(doc)
 
 		doc.set_status("Completed")
+		remove_attached_file(doc.name)
 
 	except Exception as e:
 		if frappe.flags.in_test:
@@ -314,6 +315,13 @@ def repost(doc):
 			frappe.db.commit()
 
 
+def remove_attached_file(docname):
+	if file_name := frappe.db.get_value(
+		"File", {"attached_to_name": docname, "attached_to_doctype": "Repost Item Valuation"}, "name"
+	):
+		frappe.delete_doc("File", file_name)
+
+
 def repost_sl_entries(doc):
 	if doc.based_on == "Transaction":
 		repost_future_sle(