Remove version from setup_requires

setup_requires cannot effect an upgrade, but a version being listed can
block things from operating happily. Remove the version pin from
setup_requires. Also, the setup_hooks are no longer needed.

Change-Id: Idda7d67a21c9245ca8c17973e847629bd3b4e3f2

README.md

@@ -62,7 +62,7 @@ e.g.
         └── mysql.conf
 ```
 
-An example tree [can be found here](http://git.openstack.org/cgit/openstack/tripleo-image-elements/tree/elements/keystone/os-config-applier)
+An example tree [can be found here](http://git.openstack.org/cgit/openstack/tripleo-image-elements/tree/elements/keystone/os-apply-config)
 
 If a template is executable it will be treated as an **executable template**.
 Otherwise, it will be treated as a **mustache template**.

setup.cfg

@@ -20,10 +20,6 @@ classifier =
 packages = 
 	os_apply_config
 
-[global]
-setup-hooks = 
-	pbr.hooks.setup_hook
-
 [entry_points]
 console_scripts =
 	os-config-applier = os_apply_config.apply_config:main

setup.py

@@ -18,5 +18,5 @@
 import setuptools
 
 setuptools.setup(
-    setup_requires=['pbr>=0.5.21,<1.0'],
+    setup_requires=['pbr'],
     pbr=True)