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

src/code-stubs.cc

Index: src/code-stubs.cc
diff --git a/src/code-stubs.cc b/src/code-stubs.cc
index 3901f7fbefbcb53a26f1ce3b392fdc8eaa904a1a..61df12781b119ca4ef6e770fff0780996761a6a2 100644
--- a/src/code-stubs.cc
+++ b/src/code-stubs.cc
@@ -893,11 +893,6 @@ void ArgumentsAccessStub::PrintName(std::ostream& os) const {  // NOLINT
 }
 
 
-void CallFunctionStub::PrintName(std::ostream& os) const {  // NOLINT
-  os << "CallFunctionStub_Args" << argc();
-}
-
-
 void CallConstructStub::PrintName(std::ostream& os) const {  // NOLINT
   os << "CallConstructStub";
   if (RecordCallTarget()) os << "_Recording";