Removing FLAG_vector_ics.

src/arm64/lithium-arm64.h

Index: src/arm64/lithium-arm64.h
diff --git a/src/arm64/lithium-arm64.h b/src/arm64/lithium-arm64.h
index 4d862d9d6fe39bfc81f152faa145feee0fb48eab..5457f9ceedc2028394262973c6eaade58425fbd0 100644
--- a/src/arm64/lithium-arm64.h
+++ b/src/arm64/lithium-arm64.h
@@ -165,7 +165,6 @@ class LCodeGen;
   V(SubI)                                    \
   V(SubS)                                    \
   V(TaggedToI)                               \
-  V(TailCallThroughMegamorphicCache)         \
   V(ThisFunction)                            \
   V(ToFastProperties)                        \
   V(TransitionElementsKind)                  \
@@ -319,26 +318,6 @@ class LTemplateInstruction : public LTemplateResultInstruction<R> {
 };
 
 
-class LTailCallThroughMegamorphicCache final
-    : public LTemplateInstruction<0, 3, 0> {
- public:
-  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; }