Removed the unused validate_account_code validator from the accounting application.

accounting/validators.py

@@ -62,22 +62,3 @@ def validate_record_account_code(value):
     if child is not None:
         raise ValidationError(_("You cannot select a parent account."),
                               code="parent_account")
-
-
-def validate_account_code(value):
-    """Validates an account code.
-
-    Args:
-        value (str): The account code.
-
-    Raises:
-        ValidationError: When the validation fails.
-    """
-    if len(value) > 1:
-        try:
-            Account.objects.get(code=value[:-1])
-        except Account.DoesNotExist:
-            raise ValidationError(
-                _("The parent account of this code does not exist."),
-                code="parent_not_exist")
-