Stop installing pip packages on zuul.

Let setup.py install handle it instead.

Change-Id: I7f143dcc4c19af267ef820973184c45e2020a3de
Reviewed-on: https://review.openstack.org/25551
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Approved: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Tested-by: Jenkins

modules/zuul/manifests/init.pp

@@ -47,12 +47,6 @@ class zuul (
     }
   }
 
-  package { 'statsd':
-    ensure   => latest,  # okay to use latest for pip
-    provider => pip,
-    require  => Class[pip],
-  }
-
   user { 'zuul':
     ensure     => present,
     home       => '/home/zuul',
@@ -66,18 +60,6 @@ class zuul (
     ensure => present,
   }
 
-  # Packages that need to be installed from pip
-  $pip_packages = [
-    'GitPython',
-    'extras'
-  ]
-
-  package { $pip_packages:
-    ensure   => latest,  # we want the latest from these
-    provider => pip,
-    require  => Class['pip'],
-  }
-
   vcsrepo { '/opt/zuul':
     ensure   => latest,
     provider => git,