Simplify bindep envlist for tox

Rather then being a 2 step process, just run install_bindep.sh when we
call tox -ebindep.

Change-Id: I07bf6f03df547afca11737407c288e96685fef04
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

tests/playbooks/pre.yaml

@@ -10,13 +10,7 @@
     - name: Bootstrap bindep environment
       args:
         chdir: "{{ windmill_src_dir }}"
-      command: tox -ebindep --notest
-
-    - name: Install bindep dependendies
-      args:
-        chdir: "{{ windmill_src_dir }}"
-        executable: /bin/bash
-      shell: source .tox/bindep/bin/activate; ./tools/install_bindep.sh
+      command: tox -ebindep
 
     - name: Bootstrap tox environment
       args:

tox.ini

@@ -13,7 +13,8 @@ deps = -r{toxinidir}/requirements.txt
 # dependencies are missing! This also means that bindep must be installed
 # separately, outside of the requirements files.
 deps = bindep
-commands = bindep test
+commands =
+  {toxinidir}/tools/install_bindep.sh
 
 [testenv:docs]
 commands = python setup.py build_sphinx