Remove now-incorrect DataView accessor optimization

src/crankshaft/hydrogen.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CRANKSHAFT_HYDROGEN_H_
 #define V8_CRANKSHAFT_HYDROGEN_H_
 
 #include "src/accessors.h"
 #include "src/allocation.h"
 #include "src/ast/ast-type-bounds.h"
@@ skipping 2605 matching lines @@
           DCHECK(Name::Equals(isolate()->factory()->length_string(), name_));
           *access = HObjectAccess::ForArrayLength(map_->elements_kind());
         } else {
           *access = HObjectAccess::ForMapAndOffset(map_, offset);
         }
         return true;
       }
       return false;
     }
 
-    bool IsJSArrayBufferViewFieldAccessor() {
-      int offset;  // unused
-      return Accessors::IsJSArrayBufferViewFieldAccessor(map_, name_, &offset);
-    }
-
-    bool GetJSArrayBufferViewFieldAccess(HObjectAccess* access) {
-      int offset;
-      if (Accessors::IsJSArrayBufferViewFieldAccessor(map_, name_, &offset)) {
-        *access = HObjectAccess::ForMapAndOffset(map_, offset);
-        return true;
-      }
-      return false;
-    }
-
     bool has_holder() { return !holder_.is_null(); }
     bool IsLoad() const { return access_type_ == LOAD; }
 
     Isolate* isolate() const { return builder_->isolate(); }
     Handle<JSObject> holder() { return holder_; }
     Handle<Object> accessor() { return accessor_; }
     Handle<Object> constant() { return constant_; }
     Handle<Map> transition() { return transition_; }
     SmallMapList* field_maps() { return &field_maps_; }
     HType field_type() const { return field_type_; }
@@ skipping 468 matching lines @@
   }
 
  private:
   HOptimizedGraphBuilder* builder_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_HYDROGEN_H_