Remove SIMD.js from V8.

src/crankshaft/hydrogen-instructions.cc

Index: src/crankshaft/hydrogen-instructions.cc
diff --git a/src/crankshaft/hydrogen-instructions.cc b/src/crankshaft/hydrogen-instructions.cc
index 26bbf2fcd374a2914446acd2c547b8e963c5d7b7..719a6cb07c77149166496395b04de057a6a9b787 100644
--- a/src/crankshaft/hydrogen-instructions.cc
+++ b/src/crankshaft/hydrogen-instructions.cc
@@ -1072,9 +1072,9 @@ std::ostream& HReturn::PrintDataTo(std::ostream& os) const {  // NOLINT
 
 
 Representation HBranch::observed_input_representation(int index) {
-  if (expected_input_types_ & (ToBooleanHint::kNull | ToBooleanHint::kReceiver |
-                               ToBooleanHint::kString | ToBooleanHint::kSymbol |
-                               ToBooleanHint::kSimdValue)) {
+  if (expected_input_types_ &
+      (ToBooleanHint::kNull | ToBooleanHint::kReceiver |
+       ToBooleanHint::kString | ToBooleanHint::kSymbol)) {
     return Representation::Tagged();
   }
   if (expected_input_types_ & ToBooleanHint::kUndefined) {
@@ -1244,17 +1244,6 @@ String* TypeOfString(HConstant* constant, Isolate* isolate) {
     }
     case SYMBOL_TYPE:
       return heap->symbol_string();
-    case SIMD128_VALUE_TYPE: {
-      Unique<Map> map = constant->ObjectMap();
-#define SIMD128_TYPE(TYPE, Type, type, lane_count, lane_type) \
-  if (map.IsKnownGlobal(heap->type##_map())) {                \
-    return heap->type##_string();                             \
-  }
-      SIMD128_TYPES(SIMD128_TYPE)
-#undef SIMD128_TYPE
-      UNREACHABLE();
-      return nullptr;
-    }
     default:
       if (constant->IsUndetectable()) return heap->undefined_string();
       if (constant->IsCallable()) return heap->function_string();