[Azure.AI.Translation.Document] .NET 6+ preprocessor directives removed due to code not compiling

[m-redding]

Previously Azure.AI.Translation.Document only included a netstandard2.0 target. In DocumentTranslateContent.Serialization.cs there were two lines of code inside preprocessor directives for .NET 6+. Since there was not a net6.0+ target, these lines of code were not being compiled. When a net8.0 target was added, these lines of code failed to compile because the code was out of date from when it was written. In order to preserve existing behavior, they were removed.

This is not a regression because they were not being used previously.

The library author(s) should consider whether these should be added back and how to fix the code if so.

See L60-67:

#if NET6_0_OR_GREATER
				writer.WriteRawValue(global::System.BinaryData.FromStream(item));
#else
                    using (JsonDocument document = JsonDocument.Parse(BinaryData.FromStream(item.Content)))
                    {
                        JsonSerializer.Serialize(writer, document.RootElement);
                    }
#endif

See L41-48:

#if NET6_0_OR_GREATER
				writer.WriteRawValue(global::System.BinaryData.FromStream(Document));
#else
            using (JsonDocument document = JsonDocument.Parse(BinaryData.FromStream(MultipartDocument.Content)))
            {
                JsonSerializer.Serialize(writer, document.RootElement);
            }
#endif

See: https://github.com/Azure/azure-sdk-for-net/pull/46637/files#r1819709439

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @MikeyMCZ @swmachan @vikaspalaskar.