Remove developer tools from tripleo .gitignore
Remove developer tools from tripleo .gitignore

In line with [1] removing references to developer tools in
.gitignore.

[1] https://review.openstack.org/#/c/592520/
Change-Id: Ie25972a89efb8314d2632c804bca0f37c7f2630b

dprince/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,openstack/tripleo-heat-templates