Remove apply_query_key_layer_scaling for GPT models
thanks for the explanations!
# What does this PR do ?

Remove the `apply_query_key_layer_scaling` in the GPT model configs.
This arg causes annoying issues with `NVTE_APPLY_QK_LAYER_SCALING`.


QK scaling is supposed to used for stability reason for certain models using the formula: `Q * K^T by 1 / layer-number`.

When using TE for attention blocks, This scaling is triggered only when ALL the following criteria is met:
- Training with FP16 precision
- Disable FlashAttention and Disable FusedAttention

For all other cases, the scaling will NOT be used regardless of the flag value is True or False. 

Remove this flag in all GPT models as it pretty much have no effect to all the models (since we rarely use fp16, and rarely not use FA).

**Collection**: [Note which collection this PR will affect]

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