Remove runtime-dev-envs pipeline
Remove runtime-dev-envs pipeline

- move to github.com/cloudfoundry/runtime-ci

[#114234003]

Signed-off-by: Alvaro Perez-Shirley <79f29b890b0238cfb202ad154c4598ac29519534@pivotal.io>

cloudfoundry/mega-ci,cloudfoundry/mega-ci