Fix docs-args mismatch in modules

Change-Id: I51105f11565c5ff33b04add36259c8703af11240

plugins/modules/baremetal_node.py

@@ -120,7 +120,6 @@ options:
           re-assert the password field.
         - C(skip_update_of_driver_password) is deprecated alias and will be removed in openstack.cloud 2.0.0.
       type: bool
-      default: 'no'
       aliases:
         - skip_update_of_driver_password
 requirements:

plugins/modules/volume_info.py

@@ -16,12 +16,10 @@ options:
     description:
     - Whether to provide additional information about volumes
     type: bool
-    default: false
   all_projects:
     description:
     - Whether return the volumes in all projects
     type: bool
-    default: false
   name:
     description:
     - Name of the volume as a string.