Remove jenkins slave_scripts from jenkins masters

There are no jobs running on the masters anymore, they don't need to
have the slave scripts.

Change-Id: Ia4666e396f0d69369729ce4475062c57d0763a91

modules/jenkins/manifests/master.pp

@@ -215,16 +215,4 @@ class jenkins::master(
     group  => 'root',
     mode   => '0755',
   }
-
-  file { '/usr/local/jenkins/slave_scripts':
-    ensure  => directory,
-    owner   => 'root',
-    group   => 'root',
-    mode    => '0755',
-    recurse => true,
-    purge   => true,
-    force   => true,
-    require => File['/usr/local/jenkins'],
-    source  => 'puppet:///modules/jenkins/slave_scripts',
-  }
 }