Revert "[torch.compile] Fix RMSNorm + quant fusion in the non-cutlass…

[tlrmchlsmth]

This affects FP8 models running on RoCM as well as Ada Lovelace GPUs when vLLM is built with CUDA < 12.4

#10902 added a call to get_current_vllm_config() during the forward pass, however _current_vllm_config is not set outside of worker initialization, leading to a lot of warning spam like:

WARNING 03-05 22:03:35 [config.py:3600] Current VLLM config is not set. 

This reverts commit bd56c98, although a better approach would be to plumb a variable like allow_input_padding into this function.

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[tlrmchlsmth]

closed in favor of #14390