Change Details

1. for consistency with the serializers in swh.core 2. it's not clear to me that we ever needed that (it was added in [1] with no rational) 3. it messes with swh-search reading from the journal and expecting JSON-like data. (T2876#54729) [1] https://forge.softwareheritage.org/R65:64cd01fc7c049123e16341fa93239013f152bacc

1. for consistency with the serializers in swh.core 2. it's not clear to me that we ever needed that (it was added in [1] with no rational) 3. it messes with swh-search reading from the journal and expecting JSON-like data. (T2876#54729) [1] R65:64cd01fc7c049123e16341fa93239013f152bacc

1. for consistency with the serializers in swh.core 2. it's not clear to me that we ever needed that (it was added in [1] with no rational) 3. it messes with swh-search reading from the journal and expecting JSON-like data. (T2876#54729) [1] https://forge.softwareheritage.org/R65:64cd01fc7c049123e16341fa93239013f152bacc