Updated openstack/openstack
Project: openstack/python-novaclient  8e9c038f15f9f3440ed8c430a682d7bdd48f313c
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Remove the coverage extension code

The coverage extension has been removed from Nova V2 API by the
        I07d798129ee277a6f7691c25f88c07a5204c0943
This commit remove the code.

Change-Id: I430a8b17be11bb961dc5b89b2d098f373e0a27fa