Fix unused lambda captures for big endian targets.

test/unittests/value-serializer-unittest.cc

Index: test/unittests/value-serializer-unittest.cc
diff --git a/test/unittests/value-serializer-unittest.cc b/test/unittests/value-serializer-unittest.cc
index cd2afa09f12559fb24e77bcfde59785089ed1a50..c0037efb01709e9c401992d89292422494bf18c1 100644
--- a/test/unittests/value-serializer-unittest.cc
+++ b/test/unittests/value-serializer-unittest.cc
@@ -1337,7 +1337,7 @@ TEST_F(ValueSerializerTest, DecodeDate) {
 #else
   DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x41, 0x2e, 0x84, 0x80, 0x00, 0x00,
               0x00, 0x00, 0x00},
-             [this](Local<Value> value) {
+             [](Local<Value> value) {
                ASSERT_TRUE(value->IsDate());
                EXPECT_EQ(1e6, Date::Cast(*value)->ValueOf());
                EXPECT_TRUE("Object.getPrototypeOf(result) === Date.prototype");
@@ -1345,13 +1345,13 @@ TEST_F(ValueSerializerTest, DecodeDate) {
   DecodeTest(
       {0xff, 0x09, 0x3f, 0x00, 0x44, 0xc2, 0x87, 0x89, 0x27, 0x45, 0x20, 0x00,
        0x00, 0x00},
-      [this](Local<Value> value) {
+      [](Local<Value> value) {
         ASSERT_TRUE(value->IsDate());
         EXPECT_TRUE("result.toISOString() === '1867-07-01T00:00:00.000Z'");
       });
   DecodeTest({0xff, 0x09, 0x3f, 0x00, 0x44, 0x7f, 0xf8, 0x00, 0x00, 0x00, 0x00,
               0x00, 0x00, 0x00},
-             [this](Local<Value> value) {
+             [](Local<Value> value) {
                ASSERT_TRUE(value->IsDate());
                EXPECT_TRUE(std::isnan(Date::Cast(*value)->ValueOf()));
              });