[turbofan] Remove the leftover LoadBuffer hacks.

src/compiler/simplified-lowering.h

Index: src/compiler/simplified-lowering.h
diff --git a/src/compiler/simplified-lowering.h b/src/compiler/simplified-lowering.h
index 8b711a96599fd4a0bccaa302b04e3111ab7f8aad..efb4f22c9206e95be11f2716849af278f27921b3 100644
--- a/src/compiler/simplified-lowering.h
+++ b/src/compiler/simplified-lowering.h
@@ -38,11 +38,6 @@ class SimplifiedLowering final {
   void DoStoreBuffer(Node* node);
   void DoShift(Node* node, Operator const* op, Type* rhs_type);
 
-  // TODO(bmeurer): This is a gigantic hack to support the gigantic LoadBuffer
-  // typing hack to support the gigantic "asm.js should be fast without proper
-  // verifier"-hack, ... Kill this! Soon! Really soon! I'm serious!
-  bool abort_compilation_ = false;
-
  private:
   JSGraph* const jsgraph_;
   Zone* const zone_;