message: Update simplified-fractions.cpp
diff: @@ -20,15 +20,6 @@ public:
  }
  private:
  - int gcd(int a, int b) {
  - while (b != 0) {
  - int tmp = b;
  - b = a % b;
  - a = tmp;
  - }
  - return a;
  - }
  -
  template <typename T>
  struct PairHash {
  size_t operator()(const pair<T, T>& p) const {
  