[vagrant] Don't generate rdoc/ri in provision.sh
[vagrant] Don't generate rdoc/ri in provision.sh

When provisioning the vagrant box the script was failing to generate
rdoc for pry [1]. This simply skips generating those docs to avoid the
error.

[1] https://github.com/mysociety/popit/issues/280#issuecomment-31929678

openstate/popit,mysociety/popit,openstate/popit,mysociety/popit,Sinar/popit,mysociety/popit,mysociety/popit,Sinar/popit,Sinar/popit,openstate/popit,openstate/popit,mysociety/popit,Sinar/popit