Remove ScaledActivation for AWQ (#10057)

Signed-off-by: mgoin <michael@neuralmagic.com>

vllm/model_executor/layers/quantization/base_config.py

@@ -133,11 +133,3 @@ class QuantizationConfig(ABC):
             method.
         """
         raise NotImplementedError
-
-    @abstractmethod
-    def get_scaled_act_names(self) -> List[str]:
-        """Returns the activation function names that should be post-scaled.
-
-        For now, this is only used by AWQ.
-        """
-        raise NotImplementedError