Revert "Update handler.py"

This reverts commit 2f0ed534bf8dd02bc179f1a41916123d1997eb3c.

handler.py

@@ -34,4 +34,4 @@ class EndpointHandler():
         # Perform pooling
         sentence_embeddings = mean_pooling(outputs, encoded_inputs['attention_mask'])
         # postprocess the prediction
-        return outputs.last_hidden_state.tolist()
+        return outputs.tolist()