[turbofan] Avoid introducing machine operators during typed lowering.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index 87ea5d1c502441d04966c98a6a525fe455563ac7..6835a52c7e0f8416c493ee32ee9d8007fcf61c93 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -21,7 +21,6 @@ namespace compiler {
 class CommonOperatorBuilder;
 class JSOperatorBuilder;
 class JSGraph;
-class MachineOperatorBuilder;
 class SimplifiedOperatorBuilder;
 
 
@@ -74,7 +73,6 @@ class JSIntrinsicLowering final : public AdvancedReducer {
   Isolate* isolate() const;
   CommonOperatorBuilder* common() const;
   JSOperatorBuilder* javascript() const;
-  MachineOperatorBuilder* machine() const;
   SimplifiedOperatorBuilder* simplified() const;
   DeoptimizationMode mode() const { return mode_; }