Updated coverage configuration file

removed unneccassary directories in .coveragerc file
  openstackclient/openstack/*

it is no longer valid, we no longer use content from oslo-incubator

Change-Id: I0b361617e855aae322009b97697dcc13a394ceba

Author: iswaryavakati

.coveragerc

@@ -1,7 +1,6 @@
 [run]
 branch = True
 source = openstackclient
-omit = openstackclient/openstack/*
 
 [report]
 ignore_errors = True