Reduce CastMLFloat16ThroughFloat size (Scott's suggested changes), fix unused function warning. (#6597)
Reduce CastMLFloat16ThroughFloat size (Scott's suggested changes), fix unused function warning. (#6597)


microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime,microsoft/onnxruntime