Remove docutils from test-requirements
Remove docutils from test-requirements

The package docutils is not anymore in the global requirements and is
not required.

Change-Id: I4b0f8b060b8dac2b9acf511838bdbe4e73819913

muraliselva10/cloudkitty,FNST-OpenStack/cloudkitty,openstack/cloudkitty,stackforge/cloudkitty,muraliselva10/cloudkitty,openstack/cloudkitty,FNST-OpenStack/cloudkitty,stackforge/cloudkitty