Revert of Implement xorshift128+ for Math.random.

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 8c17ae2b913ded0100b149ea60f5a7e186c68b6a..3db75a4dc048af5118017137ca510dbfdfdbe3ca 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -1726,6 +1726,24 @@
   Handle<Object> value =
       Object::GetProperty(object, inner_string).ToHandleChecked();
   return Handle<JSObject>::cast(value);
+}
+
+
+template <typename Data>
+Handle<JSTypedArray> CreateTypedArray(Isolate* isolate, ExternalArrayType type,
+                                      size_t num_elements, Data** data) {
+  size_t byte_length = num_elements * sizeof(**data);
+  Handle<JSArrayBuffer> buffer =
+      isolate->factory()->NewJSArrayBuffer(SharedFlag::kNotShared, TENURED);
+  bool is_external = (*data != nullptr);
+  if (!is_external) {
+    *data = reinterpret_cast<Data*>(
+        isolate->array_buffer_allocator()->Allocate(byte_length));
+  }
+  JSArrayBuffer::Setup(buffer, isolate, is_external, *data, byte_length,
+                       SharedFlag::kNotShared);
+  return isolate->factory()->NewJSTypedArray(type, buffer, 0, num_elements,
+                                             TENURED);
 }