Removing horizon django 1.4 job

Django 1.4 is not supported when Liberty will release.
Only versions 1.7 and 1.8 will be supported. Horizon is
working on finalizing 1.8 support. But we don't need
the 1.4 job on master any longer.

Change-Id: I73e1f52465545888f70a6e398511c84f04bb7bf7

jenkins/jobs/horizon.yaml

@@ -1,22 +1,3 @@
-- job:
-    name: gate-horizon-python27-django14
-    node: 'bare-precise || bare-trusty'
-
-    wrappers:
-      - build-timeout:
-          timeout: 40
-      - timestamps
-
-    builders:
-      - revoke-sudo
-      - gerrit-git-prep
-      - shell: '/usr/local/jenkins/slave_scripts/run-tox.sh py27dj14'
-      - assert-no-extra-files
-
-    publishers:
-      - test-results
-      - console-log
-
 - job:
     name: gate-horizon-jshint
     node: 'bare-precise || bare-trusty'

zuul/layout.yaml

@@ -1917,7 +1917,6 @@ projects:
     check:
       - gate-horizon-npm-run-test
       - gate-horizon-npm-run-lint
-      - gate-horizon-python27-django14
       - gate-horizon-selenium
       - gate-horizon-jshint
       - gate-horizon-dsvm-integration
@@ -1925,7 +1924,6 @@ projects:
       - check-grenade-dsvm
     gate:
       - gate-horizon-npm-run-test
-      - gate-horizon-python27-django14
       - gate-horizon-selenium
       - gate-tempest-dsvm-full
       - gate-grenade-dsvm