Remove code style gym exercise as we use Rubocop
Merge pull request #2 from lewagon/remove-code-style-gym

Remove code style gym exercise as we use Rubocop
Merge branch 'master' of github.com:lewagon/promo-4-challenges
validation 1er exercice
validation 2è exo
validation 3è exo
validation 4è exo
validation 4è exo
validation 6è exo
validation 7è exo
validation 8è exo