[turbofan] Run everything after representation selection concurrently.

src/code-factory.cc

Index: src/code-factory.cc
diff --git a/src/code-factory.cc b/src/code-factory.cc
index 177cacb63c621e389917941d09fc9c71407fae2f..5cecade737f9e7e510c35af61c43bf88a018246f 100644
--- a/src/code-factory.cc
+++ b/src/code-factory.cc
@@ -515,12 +515,6 @@ SIMD128_TYPES(SIMD128_ALLOC)
 #undef SIMD128_ALLOC
 
 // static
-Callable CodeFactory::Allocate(Isolate* isolate, PretenureFlag pretenure_flag) {
-  AllocateStub stub(isolate, pretenure_flag);
-  return Callable(stub.GetCode(), stub.GetCallInterfaceDescriptor());
-}
-
-// static
 Callable CodeFactory::ArgumentAdaptor(Isolate* isolate) {
   return Callable(isolate->builtins()->ArgumentsAdaptorTrampoline(),
                   ArgumentAdaptorDescriptor(isolate));