onnxruntime

delete unused local typedef VK to fix pipeline error (#14322)

fix the error
"/onnxruntime_src/onnxruntime/core/providers/cuda/test/greedy_search_top_one.cc:34:9:
error: typedef ‘using VK = struct std::pair<float, int>’ locally defined
but not used [-Werror=unused-local-typedefs]34 | using VK =
std::pair<float, int32_t>"