Unused job has been removed from Savanna projects.

flake8 and hacking are now combined into the single job and used instead
of two separated jobs - pep8 with copy-pasted hacking.py script and
pyflakes.

Change-Id: I8b2dc3fdc4c5a9ec921d39dae3e90405a01b7109
Reviewed-on: https://review.openstack.org/27343
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Elizabeth Krumbach <lyz@princessleia.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Khai Do <zaro0508@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

modules/openstack_project/files/zuul/layout.yaml

@@ -1486,14 +1486,12 @@ projects:
 
   - name: stackforge/savanna
     check:
-      - gate-savanna-pyflakes
       - gate-savanna-pep8
       - gate-savanna-python26
       - gate-savanna-python26-rhel6
       - gate-savanna-python27
     gate:
       - gate-savanna-pep8
-      - gate-savanna-pyflakes
       - gate-savanna-python26
       - gate-savanna-python27
     post:
@@ -1506,14 +1504,12 @@ projects:
 
   - name: stackforge/python-savannaclient
     check:
-      - gate-python-savannaclient-pyflakes
       - gate-python-savannaclient-pep8
       - gate-python-savannaclient-python26
       - gate-python-savannaclient-python26-rhel6
       - gate-python-savannaclient-python27
     gate:
       - gate-python-savannaclient-pep8
-      - gate-python-savannaclient-pyflakes
       - gate-python-savannaclient-python26
       - gate-python-savannaclient-python27
     post: