Remove now-incorrect DataView accessor optimization

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 8033207ba479c20f4345ac5b4b3619ffd941fd14..13a971dc1a25474efcd90c978ce8e65f1aea11b6 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -6559,7 +6559,6 @@ bool HOptimizedGraphBuilder::PropertyAccessInfo::IsIntegerIndexedExotic() {
 bool HOptimizedGraphBuilder::PropertyAccessInfo::CanAccessMonomorphic() {
   if (!CanInlinePropertyAccess(map_)) return false;
   if (IsJSObjectFieldAccessor()) return IsLoad();
-  if (IsJSArrayBufferViewFieldAccessor()) return IsLoad();
   if (map_->IsJSFunctionMap() && map_->is_constructor() &&
       !map_->has_non_instance_prototype() &&
       name_.is_identical_to(isolate()->factory()->prototype_string())) {
@@ -6607,17 +6606,6 @@ bool HOptimizedGraphBuilder::PropertyAccessInfo::CanAccessAsMonomorphic(
     }
     return true;
   }
-  if (GetJSArrayBufferViewFieldAccess(&access)) {
-    for (int i = 1; i < maps->length(); ++i) {
-      PropertyAccessInfo test_info(builder_, access_type_, maps->at(i), name_);
-      HObjectAccess test_access = HObjectAccess::ForMap();  // bogus default
-      if (!test_info.GetJSArrayBufferViewFieldAccess(&test_access)) {
-        return false;
-      }
-      if (!access.Equals(test_access)) return false;
-    }
-    return true;
-  }
 
   // Currently only handle numbers as a polymorphic case.
   // TODO(verwaest): Support monomorphic handling of numbers with a HCheckNumber
@@ -6671,12 +6659,6 @@ HValue* HOptimizedGraphBuilder::BuildMonomorphicAccess(
     return New<HLoadNamedField>(object, checked_object, access);
   }
 
-  if (info->GetJSArrayBufferViewFieldAccess(&access)) {
-    DCHECK(info->IsLoad());
-    checked_object = Add<HCheckArrayBufferNotNeutered>(checked_object);
-    return New<HLoadNamedField>(object, checked_object, access);
-  }
-
   if (info->name().is_identical_to(isolate()->factory()->prototype_string()) &&
       info->map()->IsJSFunctionMap() && info->map()->is_constructor()) {
     DCHECK(!info->map()->has_non_instance_prototype());