[llvm] [LoopFusion] Removing dead code leftover after PR #171889 (NFC) (PR #176020)

[Ehsan Amiri via llvm-commits]

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@@ -37,13 +37,6 @@ namespace {
 /// integer field equals to true, while %cond is a control condition of bb1 with
 /// the integer field equals to false.
 using ControlCondition = PointerIntPair<Value *, 1, bool>;
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amehsan wrote:

if the class can be removed, this type alias can be removed too.

https://github.com/llvm/llvm-project/pull/176020