Kill obsolete HLoadExternalArrayPointer instruction.

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 1f2ddd229a23bf11acffe45a1d97e871263e84a7..4b9aec0b46a2e628d9ad0679383b2b33485c33f3 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -116,7 +116,6 @@ class LCodeGen;
   V(Label)                                      \
   V(LazyBailout)                                \
   V(LoadContextSlot)                            \
-  V(LoadExternalArrayPointer)                   \
   V(LoadRoot)                                   \
   V(LoadFieldByIndex)                           \
   V(LoadFunctionPrototype)                      \
@@ -1511,20 +1510,6 @@ class LLoadRoot V8_FINAL : public LTemplateInstruction<1, 0, 0> {
 };
 
 
-class LLoadExternalArrayPointer V8_FINAL
-    : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LLoadExternalArrayPointer(LOperand* object) {
-    inputs_[0] = object;
-  }
-
-  LOperand* object() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(LoadExternalArrayPointer,
-                               "load-external-array-pointer")
-};
-
-
 class LLoadKeyed V8_FINAL : public LTemplateInstruction<1, 2, 0> {
  public:
   LLoadKeyed(LOperand* elements, LOperand* key) {