Removing FLAG_vector_ics.

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 381155fd1a9b531a0ee3b0946975f37f128dd164..189a0af0e735dda73fa68d50996bb29276accd8e 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -151,7 +151,6 @@ class LCodeGen;
   V(StringCompareAndBranch)                  \
   V(SubI)                                    \
   V(TaggedToI)                               \
-  V(TailCallThroughMegamorphicCache)         \
   V(ThisFunction)                            \
   V(ToFastProperties)                        \
   V(TransitionElementsKind)                  \
@@ -479,27 +478,6 @@ class LCallStub final : public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LTailCallThroughMegamorphicCache final
-    : public LTemplateInstruction<0, 3, 0> {
- public:
-  explicit LTailCallThroughMegamorphicCache(LOperand* context,
-                                            LOperand* receiver,
-                                            LOperand* name) {
-    inputs_[0] = context;
-    inputs_[1] = receiver;
-    inputs_[2] = name;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* receiver() { return inputs_[1]; }
-  LOperand* name() { return inputs_[2]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(TailCallThroughMegamorphicCache,
-                               "tail-call-through-megamorphic-cache")
-  DECLARE_HYDROGEN_ACCESSOR(TailCallThroughMegamorphicCache)
-};
-
-
 class LUnknownOSRValue final : public LTemplateInstruction<1, 0, 0> {
  public:
   bool HasInterestingComment(LCodeGen* gen) const override { return false; }