Remove commented out code.

Author: anjenner

Diff for: llvm/lib/Transforms/Utils/LowerAtomic.cpp

@@ -100,14 +100,9 @@ Value *llvm::buildAtomicRMWValue(AtomicRMWInst::BinOp Op,
     Value *Sub = Builder.CreateSub(Loaded, Val);
     return Builder.CreateSelect(Cmp, Sub, Loaded, "new");
   }
-  case AtomicRMWInst::USubSat: {
+  case AtomicRMWInst::USubSat:
     return Builder.CreateIntrinsic(Intrinsic::usub_sat, Loaded->getType(),
                                    {Loaded, Val}, nullptr, "new");
-    //    Constant *Zero = ConstantInt::get(Loaded->getType(), 0);
-    //    Value *Cmp = Builder.CreateICmpUGE(Loaded, Val);
-    //    Value *Sub = Builder.CreateSub(Loaded, Val);
-    //    return Builder.CreateSelect(Cmp, Sub, Zero, "new");
-  }
   default:
     llvm_unreachable("Unknown atomic op");
   }