include gate_operation

Author: MichaelBroughton

cirq-core/cirq/ops/gate_operation.py

@@ -222,28 +222,12 @@ def _measurement_key_name_(self) -> Optional[str]:
         getter = getattr(self.gate, '_measurement_key_name_', None)
         if getter is not None:
             return getter()
-        getter = getattr(self.gate, '_measurement_key_', None)
-        if getter is not None:
-            _warn_or_error(
-                f'_measurement_key_ was used but is deprecated.\n'
-                f'It will be removed in cirq v0.13.\n'
-                f'Use _measurement_key_name_ instead.\n'
-            )
-            return getter()
         return NotImplemented
 
     def _measurement_key_names_(self) -> Optional[AbstractSet[str]]:
         getter = getattr(self.gate, '_measurement_key_names_', None)
         if getter is not None:
             return getter()
-        getter = getattr(self.gate, '_measurement_keys_', None)
-        if getter is not None:
-            _warn_or_error(
-                f'_measurement_keys_ was used but is deprecated.\n'
-                f'It will be removed in cirq v0.13.\n'
-                f'Use _measurement_key_names_ instead.\n'
-            )
-            return getter()
         return NotImplemented
 
     def _measurement_key_obj_(self) -> Optional[value.MeasurementKey]: