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: I618fd3e2b9c65d054e8d1febe1fc19e8cb9fbf1c

doc/source/index.rst

@@ -24,11 +24,10 @@ Default variables
    :start-after: under the License.
 
 
-Required variables
-~~~~~~~~~~~~~~~~~~
-
-None.
+Dependencies
+~~~~~~~~~~~~
 
+This role needs pip >= 7.1 installed on the target host.
 
 Example playbook
 ~~~~~~~~~~~~~~~~
@@ -43,4 +42,3 @@ Tags
 This role supports the ``octavia-install`` and ``octavia-config`` tags.
 Use the ``octavia-install`` tag to install and upgrade. Use the
 ``octavia-config`` tag to maintain configuration of the service.
-

meta/main.yml

@@ -30,7 +30,6 @@ galaxy_info:
     - openstack
     - python
 dependencies:
-  - pip_install
   - role: apt_package_pinning
     when:
       - ansible_pkg_mgr == 'apt'