Remove use of distribute.

Change-Id: Ie0f23623febb41bfdba181c690cc0df94a39fa5a
Reviewed-on: https://review.openstack.org/35916
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins

jeepyb/cmd/run_mirror.py

@@ -159,8 +159,7 @@ class Mirror(object):
         print("Building mirror: %s" % mirror['name'])
         pip_format = ("%s install -M -U %s --exists-action=w "
                       "--download-cache=%s --build %s -r %s")
-        venv_format = ("virtualenv --clear --distribute "
-                       "--extra-search-dir=%s %s")
+        venv_format = ("virtualenv --clear --extra-search-dir=%s %s")
 
         workdir = tempfile.mkdtemp()
         reqs = os.path.join(workdir, "reqs")

test-requirements.txt

@@ -1,3 +1 @@
-distribute>=0.6.24
-
 hacking>=0.5.3,<0.6