[llvm] [ADT][NFC] Remove unused ValueInfoT from DenseSetImpl (PR #207277)

[Marc Auberer via llvm-commits]

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@@ -47,13 +47,10 @@ template <typename KeyT> class DenseSetPair : public DenseSetEmpty {
 ///
 /// MapTy should be either
 ///
-///   DenseMap<ValueT, detail::DenseSetEmpty, ValueInfoT,
-///            detail::DenseSetPair<ValueT>>
+///   DenseMap<ValueT, detail::DenseSetEmpty, detail::DenseSetPair<ValueT>>
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marcauberer wrote:

True, thanks! I restored the comment

https://github.com/llvm/llvm-project/pull/207277