Revert "fichier excel prof"

This reverts commit fcf7edca5cfeb75e8bf9d8dfd606d6295a9e5801.
reverse fucking upload file prof
la requête de connexion n'est envoyée que si le username contient plus de 2 caractères
cancel booking during reservation (priorite 3)
Merge branch 'amandine-constant' of github.com:teogeos/mines-travel into amandine-constant
Merge branch 'master' into amandine-constant