[QNN EP] Revert workarounds for problems in old QNN versions

[qti-jkilpatrick]

Description

• Re-enable tests and remove workarounds that were introduced as part of a QNN <= 2.31 upgrade but are no longer necessary.

Motivation and Context

QNN/QAIRT releases about once a month. As ONNX Runtime adopts these new versions, some number of tests are often found to be impacted. Consequently, tests are skipped and tolerances are loosened. This change reverts as many of those workarounds as possible that were made for QNN upgrades between 2.17 and 2.31, inclusive. The most recent few releases were intentionally not examined to minimize impact on users on old versions and to avoid lock-in to the bleeding edge.

[HectorSVC]

/azp run Linux QNN CI Pipeline,Win_TRT_Minimal_CUDA_Test_CI,Windows ARM64 QNN CI Pipeline,Windows GPU Doc Gen CI Pipeline,Windows x64 QNN CI Pipeline

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[Copilot]

Pull Request Overview

This PR reverts legacy workarounds introduced for older QNN versions by removing or adjusting the use of tolerance parameters in multiple tests. Key changes include:

• Removing QDQTolerance parameters (and their associated comments) from several test cases.
• Adjusting tolerance values (e.g. 0.0041f for matmul and gemm tests) to reflect current QNN SDK accuracy.
• Removing obsolete broken test entries from the QNN test suite.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
onnxruntime/test/providers/qnn/resize_test.cc	Removed QDQTolerance parameter and outdated tolerance comments.
onnxruntime/test/providers/qnn/pool_op_test.cpp	Removed QDQTolerance parameter and its comments for MaxPool tests.
onnxruntime/test/providers/qnn/matmul_test.cpp	Adjusted tolerance value for per-channel matmul tests from 0.005f to 0.0041f.
onnxruntime/test/providers/qnn/lrn_op_test.cc	Removed conditional tolerance usage and simplified test call.
onnxruntime/test/providers/qnn/layer_norm_test.cc	Updated a TODO comment to reference the new QNN SDK version.
onnxruntime/test/providers/qnn/gemm_op_test.cc	Adjusted tolerance values for Gemm tests from 0.0074f to 0.00410f.
onnxruntime/test/providers/qnn/conv_test.cc	Removed QDQTolerance parameters and related comments from Conv tests.
onnxruntime/test/providers/qnn/average_pool_test.cc	Removed QDQTolerance parameters and outdated comments in AveragePool tests.
onnxruntime/test/onnx/TestCase.cc	Removed obsolete broken test entries no longer applicable to current QNN SDK.

Comments suppressed due to low confidence (3)

onnxruntime/test/onnx/TestCase.cc:1396

• Confirm that the removal of these obsolete broken test entries is intentional; consider documenting external tracking if these tests are expected to be revisited later.

    broken_tests->insert({"resize_downsample_scales_linear", "result differs"});

onnxruntime/test/providers/qnn/matmul_test.cpp:282

• Verify that the new tolerance value of 0.0041f is confirmed by extensive testing and is representative for the expected accuracy.

  RunQDQPerChannelMatMulOpTest<uint16_t, int8_t, uint16_t>({2, 3, 3}, {3}, -1, QDQTolerance(0.0041f));

onnxruntime/test/providers/qnn/gemm_op_test.cc:339

• Ensure that the new tolerance threshold (0.00410f) for Gemm tests is validated across all target platforms.

                                        QDQTolerance(0.00410f));

[HectorSVC]

[HectorSVC]

/azp run Linux QNN CI Pipeline,Win_TRT_Minimal_CUDA_Test_CI,Windows ARM64 QNN CI Pipeline,Windows GPU Doc Gen CI Pipeline,Windows x64 QNN CI Pipeline

[azure-pipelines]

Azure Pipelines successfully started running 5 pipeline(s).

[HectorSVC]