Fix pip url variable name

pip_get_pip_url changed to pip_upstream_url

Change-Id: I6e7ec4a05ca309e1759bde4adb9f79ad5046d052

README.rst

@@ -12,6 +12,6 @@ This role will install pip using the upstream pip.
       user: root
       roles:
         - role: "pip_install"
-          pip_get_pip_url: https://bootstrap.pypa.io/get-pip.py
+          pip_upstream_url: https://bootstrap.pypa.io/get-pip.py
           tags:
             - "pip-install"

tests/test.yml

@@ -18,7 +18,6 @@
   connection: local
   roles:
     - role: "{{ rolename | basename }}"
-      pip_get_pip_url: "https://raw.github.com/pypa/pip/master/contrib/get-pip.py"
       # The $HOME directory is mocked to work with tox
       #  by defining the 'ansible_env' hash. This should
       #  NEVER be done outside of testing.