Revert of Continue learning for calls in optimized code when we have no type feedback.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index e2c1f77d5f75b9bcc443b82cb339f411e2fb1c02..cd93679bd085a42a99dc568a4b081d26163f6851 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -4109,29 +4109,8 @@
   DCHECK(ToRegister(instr->result()).is(r0));
 
   int arity = instr->arity();
-  CallFunctionFlags flags = instr->hydrogen()->function_flags();
-  if (instr->hydrogen()->HasVectorAndSlot()) {
-    Register slot_register = ToRegister(instr->temp_slot());
-    Register vector_register = ToRegister(instr->temp_vector());
-    DCHECK(slot_register.is(r3));
-    DCHECK(vector_register.is(r2));
-
-    Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector();
-    int index = vector->GetIndex(instr->hydrogen()->slot());
-
-    __ Move(vector_register, vector);
-    __ mov(slot_register, Operand(Smi::FromInt(index)));
-
-    CallICState::CallType call_type =
-        (flags & CALL_AS_METHOD) ? CallICState::METHOD : CallICState::FUNCTION;
-
-    Handle<Code> ic =
-        CodeFactory::CallICInOptimizedCode(isolate(), arity, call_type).code();
-    CallCode(ic, RelocInfo::CODE_TARGET, instr);
-  } else {
-    CallFunctionStub stub(isolate(), arity, flags);
-    CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
-  }
+  CallFunctionStub stub(isolate(), arity, instr->hydrogen()->function_flags());
+  CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
 }