Remove epel-release / python-pip from role

These are dependencies our role requires. As such, they should be
installed by the user.

Change-Id: I6039ac5e8483084c08fb98adc0ae855af35da0e4
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

README.rst

@@ -18,6 +18,8 @@ ramdisk images.
 Requirements
 ------------
 
+See `bindep.txt` for role dependencies.
+
 Packages
 ~~~~~~~~
 

bindep.txt

@@ -0,0 +1,4 @@
+# This is a cross-platform list tracking distribution packages needed by tests;
+# see http://docs.openstack.org/infra/bindep/ for additional information.
+
+python-pip

tasks/install.yaml

@@ -27,14 +27,6 @@
     diskimage_builder_package_name: "{{ __diskimage_builder_package_name }}"
   when: diskimage_builder_package_name is not defined
 
-# NOTE(pabelanger): This needs to be here for now, since we need python-pip.
-- name: Ensure EPEL is enabled.
-  package:
-    name: epel-release
-    state: installed
-  when: (diskimage_builder_install_method == 'git' or diskimage_builder_install_method == 'pip') and
-        ansible_os_family == 'RedHat'
-
 - name: Ensure build dependencies are installed.
   package:
     name: "{{ item }}"

vars/Debian.yaml

@@ -14,7 +14,6 @@
 ---
 __diskimage_builder_build_depends:
   - git
-  - python-pip
 
 __diskimage_builder_depends:
   - debootstrap

vars/RedHat.yaml

@@ -14,7 +14,6 @@
 ---
 __diskimage_builder_build_depends:
   - git
-  - python-pip
 
 __diskimage_builder_depends:
   - debootstrap