[turbofan] Lower StringEqual and friends in EffectControlLinearizer.

src/compiler/pipeline.cc

Index: src/compiler/pipeline.cc
diff --git a/src/compiler/pipeline.cc b/src/compiler/pipeline.cc
index 43c15ee8d4a61075d14954fa87ddb6da60ee0e82..0041da25bf31e00b18b135849e1ddf97c1f2390d 100644
--- a/src/compiler/pipeline.cc
+++ b/src/compiler/pipeline.cc
@@ -622,14 +622,6 @@ PipelineCompilationJob::Status PipelineCompilationJob::PrepareJobImpl() {
     if (!Compiler::EnsureDeoptimizationSupport(info())) return FAILED;
   }
 
-  // TODO(mstarzinger): Hack to ensure that certain call descriptors are
-  // initialized on the main thread, since it is needed off-thread by the
-  // effect control linearizer.
-  CodeFactory::CopyFastSmiOrObjectElements(info()->isolate());
-  CodeFactory::GrowFastDoubleElements(info()->isolate());
-  CodeFactory::GrowFastSmiOrObjectElements(info()->isolate());
-  CodeFactory::ToNumber(info()->isolate());
-
   linkage_ = new (&zone_) Linkage(Linkage::ComputeIncoming(&zone_, info()));
 
   if (!pipeline_.CreateGraph()) {