[llvm] [DAGCombiner] Remove unnecessary N0->hasOneUse() check from foldSelectOfBinops. NFC (PR #216221)

[Matt Arsenault via llvm-commits]

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@@ -201,23 +202,26 @@ declare void @llvm.dbg.value(metadata, metadata, metadata)
 define double @foo1_g(float %p1, double %p2, double %p3) nounwind !dbg !4 {
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arsenm wrote:

This looks like it got bigger

https://github.com/llvm/llvm-project/pull/216221