message: remove dtype checking
diff: @@ -53,10 +53,7 @@ void replaceFrozenIPEXLinearWithAtenLinear(
  if (!toIValue(prepack_node).has_value())
  continue;
  at::Tensor weight_tensor;
  - auto weight_dtype =
  - n->inputs().at(1)->type()->cast<TensorType>()->scalarType();
  - if (use_mkl_sgemm && weight_dtype.has_value() &&
  - weight_dtype.value() != at::ScalarType::BFloat16) {
  + if (use_mkl_sgemm) {
  auto linear_op_ctx =
  toIValue(prepack_node).value().toCustomClass<MKLOpContext>();
  weight_tensor = linear_op_ctx->to_public(
  