Use FixedTypedArrayBase's body descriptor for static visiting

src/heap/objects-visiting.h

Index: src/heap/objects-visiting.h
diff --git a/src/heap/objects-visiting.h b/src/heap/objects-visiting.h
index 5d2176186fdbd215ce6f6a93ac66eccc5ed43edd..ba16c71f73b0187bc14e9e48fec602c4fddc5ffa 100644
--- a/src/heap/objects-visiting.h
+++ b/src/heap/objects-visiting.h
@@ -268,10 +268,6 @@ class StaticNewSpaceVisitor : public StaticVisitorBase {
     return FixedDoubleArray::SizeFor(length);
   }
 
-  INLINE(static int VisitFixedTypedArray(Map* map, HeapObject* object)) {
-    return reinterpret_cast<FixedTypedArrayBase*>(object)->size();
-  }
-
   INLINE(static int VisitJSObject(Map* map, HeapObject* object)) {
     return JSObjectVisitor::Visit(map, object);
   }