Finish removing --chex-overlay.

PiperOrigin-RevId: 404858258

pytype/config.py

@@ -265,10 +265,6 @@ def add_infrastructure_options(o):
       "-Z", "--quick", action="store_true",
       dest="quick", default=None,
       help=("Only do an approximation."))
-  o.add_argument(
-      "--chex-overlay", action="store_true",
-      dest="chex_overlay", default=True,
-      help="Temporary flag to aid the release of an overlay for chex.dataclass")
 
 
 def add_debug_options(o):

pytype/tests/test_base.py

@@ -132,7 +132,6 @@ def setUp(self):
     self.options = config.Options.create(python_version=self.python_version,
                                          allow_recursive_types=True,
                                          bind_properties=True,
-                                         chex_overlay=True,
                                          use_enum_overlay=True)
 
   @property

pytype/vm.py

@@ -1553,9 +1553,6 @@ def _maybe_load_overlay(self, name):
     """Check if a module path is in the overlay dictionary."""
     if name not in overlay_dict.overlays:
       return None
-    if name == "chex" and not self.ctx.options.chex_overlay:
-      # TODO(b/185807105): Enable --chex-overlay by default.
-      return None
     if name in self.loaded_overlays:
       overlay = self.loaded_overlays[name]
     else: