[analyzer][NFC] Remove unused nonloc::ConcreteInt::evalBinOp

clang/include/clang/StaticAnalyzer/Core/PathSensitive/SVals.h

 class ConcreteInt : public NonLoc {
 public:
   explicit ConcreteInt(const llvm::APSInt& V) : NonLoc(ConcreteIntKind, &V) {}
 
   const llvm::APSInt& getValue() const {
     return *static_cast<const llvm::APSInt *>(Data);
   }
 
-  // Transfer functions for binary/unary operations on ConcreteInts.
-  SVal evalBinOp(SValBuilder &svalBuilder, BinaryOperator::Opcode Op,
-                 const ConcreteInt& R) const;
-
 private:
   friend class SVal;
 
   ConcreteInt() = default;
 
   static bool isKind(const SVal& V) {
     return V.getBaseKind() == NonLocKind &&
            V.getSubKind() == ConcreteIntKind;

clang/lib/StaticAnalyzer/Core/SVals.cpp

bool SVal::isConstant(int I) const {
   return false;
 }
 
 bool SVal::isZeroConstant() const {
   return isConstant(0);
 }
 
 //===----------------------------------------------------------------------===//
-// Transfer function dispatch for Non-Locs.
-//===----------------------------------------------------------------------===//
-
-SVal nonloc::ConcreteInt::evalBinOp(SValBuilder &svalBuilder,
-                                    BinaryOperator::Opcode Op,
-                                    const nonloc::ConcreteInt& R) const {
-  const llvm::APSInt* X =
-    svalBuilder.getBasicValueFactory().evalAPSInt(Op, getValue(), R.getValue());
-
-  if (X)
-    return nonloc::ConcreteInt(*X);
-  else
-    return UndefinedVal();
-}
-
-//===----------------------------------------------------------------------===//
 // Pretty-Printing.
 //===----------------------------------------------------------------------===//
 
 LLVM_DUMP_METHOD void SVal::dump() const { dumpToStream(llvm::errs()); }
 
 void SVal::printJson(raw_ostream &Out, bool AddQuotes) const {
   std::string Buf;
   llvm::raw_string_ostream TempOut(Buf);