Remove trailing serialization tag in test

This should have been updated in https://crrev.com/c/3370408

Bug: chromium:1284506
Change-Id: Ie44d80b507c9a798ce6f4776672270f9d4b12195
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3371463Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Austin Sullivan <asully@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78519}

test/unittests/objects/value-serializer-unittest.cc

@@ -1996,7 +1996,7 @@ TEST_F(ValueSerializerTest, RoundTripDataView) {
 TEST_F(ValueSerializerTest, DecodeDataView) {
   Local<Value> value =
       DecodeTest({0xFF, 0x09, 0x3F, 0x00, 0x3F, 0x00, 0x42, 0x04, 0x00, 0x00,
-                  0x00, 0x00, 0x56, 0x3F, 0x01, 0x02, 0x00});
+                  0x00, 0x00, 0x56, 0x3F, 0x01, 0x02});
   ASSERT_TRUE(value->IsDataView());
   EXPECT_EQ(1u, DataView::Cast(*value)->ByteOffset());
   EXPECT_EQ(2u, DataView::Cast(*value)->ByteLength());