message: [vcpkg] Clean up triplet.h
diff: @@ -49,12 +49,4 @@ namespace std
  }
  };
  - template <>
  - struct equal_to<vcpkg::triplet>
  - {
  - bool operator()(const vcpkg::triplet& left, const vcpkg::triplet& right) const
  - {
  - return left == right;
  - }
  - };
  } // namespace std
  