feat: Default webservices can be disabled

docs/config.rst

@@ -491,6 +491,13 @@ If you want to add a webservice (endpoint), add, for example:
 
 You can use code for webservices in `webservice.py <https://github.com/scrapy/scrapyd/blob/master/scrapyd/webservice.py>`__ as inspiration.
 
+To remove a :ref:`default webservice<config-default>`, set it to empty:
+
+.. code-block:: ini
+
+   [services]
+   daemonstatus.json =
+
 .. _config-settings:
 
 settings section (scrapy.cfg)

scrapyd/website.py

@@ -147,8 +147,9 @@ def __init__(self, config, app):
             self.putChild(b"items", File(self.items_dir, "text/plain"))
 
         for service_name, service_path in config.items("services", default=[]):
-            service_cls = load_object(service_path)
-            self.putChild(service_name.encode(), service_cls(self))
+            if service_path:
+                service_cls = load_object(service_path)
+                self.putChild(service_name.encode(), service_cls(self))
 
         # Add web UI last, since its behavior can depend on others' presence.
         self.putChild(b"", Home(self))