Remove default None value for config options

In oslo.config default is always initialized to None.

Change-Id: I4c8eb7eb43121d28364f6e2e3a2fbabcc1bdb90d
1 file changed
tree: 73726932c2b98f26f9c2e7c5fceecca4b532d125
  1. common/
  2. functional/
  3. scenario/