Remove reference

Remove reference

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If variable is of type T then return T, else if it a reference then return the actual type

  std::cout << std::is_same(int, std::remove_reference<int>::type)
  std::cout << std::is_same(int, std::remove_reference<int &>::type)
  std::cout << std::is_same(int, std::remove_reference<int &&>::type)