Merge "Remove unused project_yaml parameter from role metadata files"

ansible/roles/ceilometer/meta/main.yml

 ---
 dependencies:
-  - { role: common, project_yaml: 'ceilometer.yml'  }
+  - { role: common }

ansible/roles/cinder/meta/main.yml

 ---
 dependencies:
-  - { role: common, project_yaml: 'cinder.yml'  }
+  - { role: common }

ansible/roles/glance/meta/main.yml

 ---
 dependencies:
-  - { role: common, project_yaml: 'glance.yml' }
+  - { role: common }

ansible/roles/nova/meta/main.yml

 ---
 dependencies:
-  - { role: common, project_yaml: 'nova.yml'  }
+  - { role: common }