Use xorshift for rand generator

src/include/migraph/generate.hpp

@@ -34,9 +34,6 @@ template <class T>
 std::vector<T> generate_tensor_data(migraph::shape s, std::mt19937::result_type seed = 0)
 {
     std::vector<T> result(s.elements());
-    std::mt19937 engine{seed};
-    std::uniform_real_distribution<> dist;
-    // std::generate(result.begin(), result.end(), [&] { return dist(engine); });
     std::generate(result.begin(), result.end(), xorshf96_generator<T>{});
     return result;
 }