Use standard nodejs4 tests

We can now use the standard nodejs4 tests and don't need the legacy jobs
anymore.

The standard nodejs4 tests life in project-config, so the dependent job
moves them there.

Remove the old jobs here.

Depends-On: I80dea47f0ba43f74e074ba61b465e3f7d4f28952
Change-Id: I63924c40b2becf13915e0a3d6475a613de0c2181

zuul.d/jobs.yaml

@@ -1,17 +0,0 @@
-- job:
-    name: octavia-dashboard-nodejs4-npm-run-lint
-    parent: legacy-base
-    run: playbooks/legacy/octavia-dashboard-nodejs4-npm-run-lint/run.yaml
-    post-run: playbooks/legacy/octavia-dashboard-nodejs4-npm-run-lint/post.yaml
-    timeout: 2400
-    required-projects:
-      - openstack/horizon
-
-- job:
-    name: octavia-dashboard-nodejs4-npm-run-test
-    parent: legacy-base
-    run: playbooks/legacy/octavia-dashboard-nodejs4-npm-run-test/run.yaml
-    post-run: playbooks/legacy/octavia-dashboard-nodejs4-npm-run-test/post.yaml
-    timeout: 2400
-    required-projects:
-      - openstack/horizon

zuul.d/projects.yaml

@@ -1,12 +0,0 @@
-# Note: Some official OpenStack wide jobs are still defined in the
-#       project-config repository
-- project:
-    name: openstack/octavia-dashboard
-    check:
-      jobs:
-        - octavia-dashboard-nodejs4-npm-run-lint
-        - octavia-dashboard-nodejs4-npm-run-test
-    gate:
-      jobs:
-        - octavia-dashboard-nodejs4-npm-run-lint
-        - octavia-dashboard-nodejs4-npm-run-test