python: Remove unused arguments for translated format strings.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

corporate/views/billing_page.py

@@ -233,9 +233,7 @@ def update_plan(
             )
         if last_ledger_entry.licenses > licenses:
             raise JsonableError(
-                _("You cannot decrease the licenses in the current billing period.").format(
-                    licenses=licenses
-                )
+                _("You cannot decrease the licenses in the current billing period.")
             )
         validate_licenses(
             plan.charge_automatically,

zerver/forms.py

@@ -262,7 +262,7 @@ class HomepageForm(forms.Form):
                 _(
                     "Your email address, {email}, is not in one of the domains "
                     "that are allowed to register for accounts in this organization."
-                ).format(string_id=realm.string_id, email=email)
+                ).format(email=email)
             )
         except DisposableEmailError:
             raise ValidationError(_("Please use your real email address."))