feat: remove default favicon

tests/test_handlers.py

@@ -1227,12 +1227,12 @@ class TestRequestHandler(BaseHandlerTestCase):
         with (
             self.patch_call(
                 "http.server.SimpleHTTPRequestHandler.translate_path",
-                ["/favicon.ico"],
+                ["/robots.txt"],
             ),
             self.seal_mocks(),
         ):
             self.assertEqual(
-                handler.translate_path("/favicon.ico"),
+                handler.translate_path("/robots.txt"),
                 None,
             )
 
@@ -1269,12 +1269,12 @@ class TestRequestHandler(BaseHandlerTestCase):
             self.mock_call(self.registry.get_from_host, ["example.com"], Page("path")),
             self.patch_call(
                 "http.server.SimpleHTTPRequestHandler.translate_path",
-                ["/favicon.ico"],
+                ["/robots.txt"],
             ),
             self.seal_mocks(),
         ):
             self.assertEqual(
-                handler.translate_path("/favicon.ico"),
+                handler.translate_path("/robots.txt"),
                 None,
             )