Remove `@debug` in `transcode`

[mmiller-max]

Is the debug logging in transcode necessary? I am having to alter logging behaviour either side of this function to stop the debug logs from this function hiding the debug logs for a microservice that doing a lot of encoding and decoding. Happy to make a PR if this change is acceptable

[fredrikekre]

Drive by-comment, but you can filter out logs from specific modules, see https://julialogging.github.io/how-to/filter-messages/ and e.g. this example https://github.com/JuliaLogging/LoggingExtras.jl#filterout-any-messages-from-http .