Replace assertions with value errors on distilbert model
# Replace assertions with ValueErros on distilbert model

This PR is made to check if the valid checks made from #20433 pass for all cases.

Co-author: @batese2001


To: @younesbelkada 
_The documentation is not available anymore as the PR was closed or merged._<|||||>Thank you so much!
<|||||>Thank you so much for your guidance and help!