[turbofan] Remove the leftover LoadBuffer hacks.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index c483ae33f345e178fb667d61c8dae3c3f0e576fa..fad9e489b7562dbf5a58bd1461cc597b3435a4b5 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -771,12 +771,6 @@ struct SimplifiedLoweringPhase {
                                 data->source_positions());
     lowering.LowerAllNodes();
 
-    // TODO(bmeurer): See comment on SimplifiedLowering::abort_compilation_.
-    if (lowering.abort_compilation_) {
-      data->set_compilation_failed();
-      return;
-    }
-
     JSGraphReducer graph_reducer(data->jsgraph(), temp_zone);
     DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(),
                                               data->common());
@@ -1287,9 +1281,6 @@ Handle<Code> Pipeline::GenerateCode() {
   // Kill the Typer and thereby uninstall the decorator (if any).
   typer.Reset(nullptr);
 
-  // TODO(bmeurer): See comment on SimplifiedLowering::abort_compilation_.
-  if (data.compilation_failed()) return Handle<Code>::null();
-
   return ScheduleAndGenerateCode(
       Linkage::ComputeIncoming(data.instruction_zone(), info()));
 }