Drop some unused code

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index cf3950f4f01b2af65111bb10c5e02b93a33bc796..5b9a71dcb9bae6dc5aed3cc78f301ba27cb08175 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -9,11 +9,8 @@
 #include "src/compiler.h"
 #include "src/ic/ic.h"
 #include "src/ic/stub-cache.h"
-#include "src/macro-assembler.h"
 #include "src/type-info.h"
 
-#include "src/objects-inl.h"
-
 namespace v8 {
 namespace internal {
 
@@ -81,17 +78,6 @@ bool TypeFeedbackOracle::StoreIsUninitialized(TypeFeedbackId ast_id) {
 }
 
 
-bool TypeFeedbackOracle::StoreIsKeyedPolymorphic(TypeFeedbackId ast_id) {
-  Handle<Object> maybe_code = GetInfo(ast_id);
-  if (maybe_code->IsCode()) {
-    Handle<Code> code = Handle<Code>::cast(maybe_code);
-    return code->is_keyed_store_stub() &&
-        code->ic_state() == POLYMORPHIC;
-  }
-  return false;
-}
-
-
 bool TypeFeedbackOracle::CallIsMonomorphic(int slot) {
   Handle<Object> value = GetInfo(slot);
   return value->IsAllocationSite() || value->IsJSFunction();