Fixes #3865 - Remove useless migrations scripts about fileformat of eventlogs
Merge pull request #109 from nperron/bug_3865/int/remove_useless_migration_part_of_fileformat

Fixes #Refs 3865 - Remove useless migrations scripts about fileformat of eventlogs
Merge branch 'branches/rudder/2.4' into branches/rudder/2.6