refactor: rename variable usage to DOKKU_REMOTE_HOST
refactor: rename variable usage to DOKKU_REMOTE_HOST

This allows us to make it a local variable

jimjag/dokku,claytonbrown/dokku,dokku/dokku,jimjag/dokku,alexquick/dokku,progrium/dokku,fruitl00p/dokku,dokku/dokku,fruitl00p/dokku,progrium/dokku,econya/dokku,progrium/dokku,claytonbrown/dokku,dokku/dokku,dokku/dokku,jimjag/dokku,dokku/dokku,econya/dokku,fruitl00p/dokku,elia/dokku,elia/dokku,alexquick/dokku,elia/dokku,progrium/dokku,elia/dokku,progrium/dokku,econya/dokku,elia/dokku,elia/dokku,fruitl00p/dokku,alexquick/dokku,econya/dokku,claytonbrown/dokku,fruitl00p/dokku,jimjag/dokku,jimjag/dokku,jimjag/dokku,progrium/dokku,claytonbrown/dokku,dokku/dokku,claytonbrown/dokku,alexquick/dokku,elia/dokku,econya/dokku,fruitl00p/dokku,progrium/dokku,econya/dokku,dokku/dokku,fruitl00p/dokku,econya/dokku,jimjag/dokku,alexquick/dokku,fruitl00p/dokku,dokku/dokku,claytonbrown/dokku,alexquick/dokku,claytonbrown/dokku,progrium/dokku,claytonbrown/dokku,alexquick/dokku,elia/dokku,alexquick/dokku,jimjag/dokku,econya/dokku