[VitisAI] remove unused header

[BoarQing]

Description

Removed unused headers

Motivation and Context

This would cause compile error on machine that didn't install nlohmann.

[BoarQing]

@jywu-msft Could you review this when you have time? No functionality is changed.

[tianleiwu]

/azp run Windows ARM64 QNN CI Pipeline,Windows x64 QNN CI Pipeline,Windows CPU CI Pipeline,Windows GPU CUDA CI Pipeline,Windows GPU DML CI Pipeline,Windows GPU Doc Gen CI Pipeline,Windows GPU TensorRT CI Pipeline,ONNX Runtime Web CI Pipeline,Linux CPU CI Pipeline,Linux CPU Minimal Build E2E CI Pipeline

[tianleiwu]

/azp run Linux GPU CI Pipeline,Linux GPU TensorRT CI Pipeline,Linux OpenVINO CI Pipeline,Linux QNN CI Pipeline,MacOS CI Pipeline,orttraining-amd-gpu-ci-pipeline,orttraining-linux-ci-pipeline,orttraining-linux-gpu-ci-pipeline,orttraining-ortmodule-distributed,onnxruntime-binary-size-checks-ci-pipeline

[tianleiwu]

/azp run Big Models,Linux Android Emulator QNN CI Pipeline,Android CI Pipeline,iOS CI Pipeline,ONNX Runtime React Native CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 5 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 10 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 10 pipeline(s).

[tianleiwu]

/azp run ONNX Runtime Web CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[jywu-msft]

can you merge latest main to address the Linux OpenVINO CI Pipeline failure?

[BoarQing]

can you merge latest main to address the Linux OpenVINO CI Pipeline failure?

I just merged it. @jywu-msft

[tianleiwu]

/azp run Windows ARM64 QNN CI Pipeline,Windows x64 QNN CI Pipeline,Windows CPU CI Pipeline,Windows GPU CUDA CI Pipeline,Windows GPU DML CI Pipeline,Windows GPU Doc Gen CI Pipeline,Windows GPU TensorRT CI Pipeline,ONNX Runtime Web CI Pipeline,Linux CPU CI Pipeline,Linux CPU Minimal Build E2E CI Pipeline

[tianleiwu]

/azp run Linux GPU CI Pipeline,Linux GPU TensorRT CI Pipeline,Linux OpenVINO CI Pipeline,Linux QNN CI Pipeline,MacOS CI Pipeline,orttraining-amd-gpu-ci-pipeline,orttraining-linux-ci-pipeline,orttraining-linux-gpu-ci-pipeline,orttraining-ortmodule-distributed,onnxruntime-binary-size-checks-ci-pipeline

[tianleiwu]

/azp run Big Models,Linux Android Emulator QNN CI Pipeline,Android CI Pipeline,iOS CI Pipeline,ONNX Runtime React Native CI Pipeline

[azure-pipelines[bot]]

Azure Pipelines successfully started running 10 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 5 pipeline(s).

[azure-pipelines[bot]]

Azure Pipelines successfully started running 10 pipeline(s).

[BoarQing]

@tianleiwu @jywu-msft Can we merge this?