修复turbomind从hf读模型时存在bf16不支持的问题

lmdeploy/turbomind/turbomind.py

@@ -248,9 +248,9 @@ class TurboMind:
             data_type = 'int4'
             assert group_size > 0, f'group_size: {group_size} should > 0'
         else:
-            output_format = update_output_format(model_name,
-                                                 inferred_model_format,
-                                                 model_path, output_format)
+            # output_format = update_output_format(model_name,
+            #                                      inferred_model_format,
+            #                                      model_path, output_format)
             data_type = output_format
             update_config_weight_type(output_format, cfg)