Remove CallFunctionStub, always call through the Call builtin (also from CallIC)

src/code-factory.h

Index: src/code-factory.h
diff --git a/src/code-factory.h b/src/code-factory.h
index 0fa7ac86b1841fbbdf4756b7dea1f993bcedc24f..f3659f8ebee77a74a6b30e9fb5a43330c7920504 100644
--- a/src/code-factory.h
+++ b/src/code-factory.h
@@ -42,10 +42,8 @@ class CodeFactory final {
   static Callable KeyedLoadICInOptimizedCode(
       Isolate* isolate, LanguageMode language_mode,
       InlineCacheState initialization_state);
-  static Callable CallIC(Isolate* isolate, int argc,
-                         CallICState::CallType call_type);
-  static Callable CallICInOptimizedCode(Isolate* isolate, int argc,
-                                        CallICState::CallType call_type);
+  static Callable CallIC(Isolate* isolate, int argc);
+  static Callable CallICInOptimizedCode(Isolate* isolate, int argc);
   static Callable StoreIC(Isolate* isolate, LanguageMode mode);
   static Callable StoreICInOptimizedCode(Isolate* isolate, LanguageMode mode,
                                          InlineCacheState initialization_state);
@@ -97,10 +95,6 @@ class CodeFactory final {
   static Callable AllocateMutableHeapNumber(Isolate* isolate);
   static Callable AllocateInNewSpace(Isolate* isolate);
 
-  // TODO(bmeurer): Kill this!
-  static Callable CallFunction(Isolate* isolate, int argc,
-                               CallFunctionFlags flags);
-
   static Callable ArgumentAdaptor(Isolate* isolate);
   static Callable Call(Isolate* isolate);