pin setuptools to 7.0 to workaround brokenness in 8.x

setuptools 8.0 (and subsequently 8.0.1, 8.0.2) were released over the
weekend.  This introduces a breaking change whereby python packages
installed from SHA, rather than with a proper release version, do not
have their version numbers parsed properly due to the appended sha.
Eg python-glanceclient 0.14.2.2.gb126351

This commit:

- pins setuptools to 7.0, to workaround this issue until a fix
is made upstream, inside the global requirements.txt

- removes package installations of python-setuptools and
python-pip which had potential to further conflict.

- removes the list pip_common_packages from the all_common vars file

Closes-Bug: 1402679

Closes-Bug: 1402672

Change-Id: Idb75f816f47740ee28ec5d7d8afb118acf4a71bb

requirements.txt

@@ -14,4 +14,5 @@ requests==2.4.1
 cloudlib==0.0.8
 pip==1.5.6
 wheel==0.24.0
+setuptools==7.0
 http://mirror.rackspace.com/rackspaceprivatecloud/downloads/ansible-1.6.10.tar.gz

rpc_deployment/vars/repo_packages/all_common.yml

@@ -39,12 +39,6 @@ apt_common_repos:
 get_pip_url: "{{ rpc_repo_url }}/downloads/get-pip.py"
 get_pip_sha256sum: "d43dc33a5670d69dd14a9be1f2b2fa27ebf124ec1b212a47425331040f742a9b"
 
-pip_common_packages:
-  - wheel
-  - setuptools
-  - pip
-
-
 ## Base Packages
 apt_common_packages:
   - aptitude

rpc_deployment/vars/repo_packages/readme.rst

@@ -34,6 +34,5 @@ Defaults processed by the **package_source_archive**,
   * pip_wheel_name: ``string`` pip package name to FIRST attempt installation of.
   * service_pip_dependencies: ``list`` of ``strings``.
   * container_packages: ``list`` of ``strings``.
-  * pip_common_packages: ``list`` of ``strings``.
   * apt_common_packages: ``list`` of ``strings``.
   * common_util_packages: ``list`` of ``strings``.

rpc_deployment/vars/repo_packages/swift.yml

@@ -37,11 +37,9 @@ service_pip_dependencies:
 
 container_packages:
   - curl
-  - python-pip
   - rsync
   - openssh-server
   - git-core
-  - python-setuptools
   - python-dev
   - gcc
   - libffi-dev