fix: accept path instead of fn in signup hook

frappe/www/login.py

@@ -41,10 +41,8 @@ def get_context(context):
 		frappe.get_system_settings("app_name") or _("Frappe"))
 
 	custom_signup = frappe.get_hooks("custom_signup_form")
-	if custom_signup:
-		path = frappe.get_attr(custom_signup[0])()
-		if path:
-			context["custom_signup_form"] = frappe.get_template(path).render()
+	if custom_signup and len(custom_signup) and custom_signup[0]:
+		context["custom_signup_form"] = frappe.get_template(custom_signup[0]).render()
 
 	providers = [i.name for i in frappe.get_all("Social Login Key", filters={"enable_social_login":1}, order_by="name")]
 	for provider in providers: