Remove experimental bindep infra jobs

We can safely remove these now that infra is running under
ubuntu-trusty.

Change-Id: Ib641e0fb5458a5d3ba68038264596a22b61aedd1
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

jenkins/jobs/projects.yaml

@@ -5240,22 +5240,6 @@
             - devstack-centos7
             - fedora-23
             - ubuntu-trusty
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: grafyaml
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: gerrit
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: irc
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: zuul
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: jenkins-project
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: nodepool
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: projects
-      - gate-{name}-tox-{envlist}-bindep:
-          envlist: dib
 
 - project:
     name: project-config-example

zuul/layout.yaml

@@ -3014,15 +3014,6 @@ projects:
       - publish-specs-site
     periodic:
       - propose-project-config-update
-    experimental:
-      - gate-project-config-tox-gerrit-bindep
-      - gate-project-config-tox-grafyaml-bindep
-      - gate-project-config-tox-zuul-bindep
-      - gate-project-config-tox-jenkins-project-bindep
-      - gate-project-config-tox-nodepool-bindep
-      - gate-project-config-tox-projects-bindep
-      - gate-project-config-tox-irc-bindep
-      - gate-project-config-tox-dib-bindep
 
   - name: openstack-infra/project-config-example
     template: