Revert D56685840: Multisect successfully blamed "D56685840: [fbgemm] …

…Change model transform fp8 linear op to fbgemm quantize ops" for one test failure

Summary:
This diff reverts D56685840
D56685840: [fbgemm] Change model transform fp8 linear op to fbgemm quantize ops by jianyuh causes the following test failure:

Tests affected:
- [cogwheel:cogwheel_gpu_ait_lowering_latency_regression_test#main](https://www.internalfb.com/intern/test/281475067301657/)

Here's the Multisect link:
https://www.internalfb.com/multisect/4966282
Here are the tasks that are relevant to this breakage:
T174133180: 10+ tests unhealthy for oncall_model_processing_components_infra

The backout may land if someone accepts it.

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Reviewed By: jianyuh

Differential Revision: D56714397

fbgemm_gpu/experimental/gen_ai/src/quantize/quantize.cpp

@@ -79,7 +79,7 @@ at::Tensor get_fp8_per_tensor_scale(
     c10::optional<at::Tensor> bs,
     c10::optional<at::Tensor> scale_ub); // scale upperbound
 
-TORCH_LIBRARY_FRAGMENT(fbgemm, m) {
+TORCH_LIBRARY(fbgemm, m) {
 #ifndef USE_ROCM
   // TODO: on AMD this throws "Undefined symbol" when loading
   // quantize_ops with