[DRAFT PR] Disable ORT_RUN_EXTERNAL_ONNX_TESTS to test CI impact

[kobby-kobbs]

Description

This draft PR disables the ORT_RUN_EXTERNAL_ONNX_TESTS macro to test the CI impact of removing private model dependencies.

Changes

• Commented out add_definitions(-DORT_RUN_EXTERNAL_ONNX_TESTS) in cmake/external/onnxruntime_external_deps.cmake (line 601)

Purpose

Testing how CI pipelines react to disabling external model tests that depend on private models not available to external partners.

Context

Part of the initiative to ensure all ONNX Runtime test models are publicly accessible for external EP partners (NVIDIA, Intel, Qualcomm, AMD).

Verification Results

• 49.2% of current test models have verified public checksums matching ONNX Model Zoo
• 50.8% are private/modified versions that cannot be shared
• This change disables tests for the private models