[Scalar] Remove an unused local varable (NFC)

The last uses of CRs were removed on Jan 17, 2023 in commit
61bb549cfd43fe4753fc78075b626ae18106fbeb.

diff --git a/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp b/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
index 90b4b52..856a8fd 100644 (file)
--- a/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
+++ b/llvm/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
@@ -717,7 +717,6 @@ static bool narrowSDivOrSRem(BinaryOperator *Instr, const ConstantRange &LCR,
 
   // What is the smallest bit width that can accommodate the entire value ranges
   // of both of the operands?
-  std::array<std::optional<ConstantRange>, 2> CRs;
   unsigned MinSignedBits =
       std::max(LCR.getMinSignedBits(), RCR.getMinSignedBits());