Remove pip_install dependency

With addition of pip_install on every node, we don't
need to have pip_install as a meta dependency.

Depends-On: If3412bb888ebb854874bbc43eb76bfcb3e4a7868
Depends-On: I79ff70c438b44753be2a93f004ebbc46de0a963d
Change-Id: Ib8e09a23c6120ee9ab59964ae1d1401a5a10e9ba

doc/source/index.rst

@@ -25,10 +25,10 @@ Default variables
    :language: yaml
    :start-after: under the License.
 
-Required variables
-~~~~~~~~~~~~~~~~~~
+Dependencies
+~~~~~~~~~~~~
 
-None
+This role needs pip >= 7.1 installed on the target host.
 
 Example playbook
 ~~~~~~~~~~~~~~~~

meta/main.yml

@@ -38,6 +38,5 @@ galaxy_info:
     - development
     - openstack
 dependencies:
-  - pip_install
   - apt_package_pinning
   - openstack_openrc