ValidationError attribute parameters is not usefull anymore #2128
Description
Describe the bug
Since metadata are now STAC-formatted, ValidationError attribute parameters which allows to convert eodag metadata eodag to STAC-formatted metadata to display errors correctly in the STAC server is not useful anymore.
Additional context
The server stac-fastapi-eodag is also impacted by this modification, then please update the code there in the mean time.