Update git submodules
* Update os-client-config from branch 'master'
to 0cf24ffbf9110125f6a8c04fe2cbad6a75cb3d04
- Merge "Drop usage of extras.hasattr"
- Drop usage of extras.hasattr
... because the method was already removed from extras[1], and can be
easily replaced by the built-in hasattr method.
[1] 304c046b05c72c5597f5b0568c08bbd585408973
Change-Id: Ia727f3e031f6162ef7864168f4c7c41c9b38709e
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