bird is no longer required for kubernetes

Change-Id: Ife1dce4f300b59f066d9617be1df26ecf2c25ed1
diff --git a/salt/master/formula/git/kubernetes.yml b/salt/master/formula/git/kubernetes.yml
index fe8ad5d..3d9d89e 100644
--- a/salt/master/formula/git/kubernetes.yml
+++ b/salt/master/formula/git/kubernetes.yml
@@ -12,11 +12,7 @@
               source: git
               address: '${_param:salt_master_environment_repository}/salt-formula-etcd.git'
               revision: ${_param:salt_master_environment_revision}
-            bird:
-              source: git
-              address: '${_param:salt_master_environment_repository}/salt-formula-bird.git'
-              revision: ${_param:salt_master_environment_revision}
             docker:
               source: git
               address: '${_param:salt_master_environment_repository}/salt-formula-docker.git'
-              revision: ${_param:salt_master_environment_revision}
\ No newline at end of file
+              revision: ${_param:salt_master_environment_revision}