install-ansible: remove stevedore workaround

stevedore is several releases on from this buggy behaviour, so we can
remove this workaround now.

Change-Id: I466dce31fc3b7370b55f0b03c611460debe92558

playbooks/roles/install-ansible/tasks/main.yaml

@@ -123,26 +123,6 @@
     version: '{{ _install_ansible_openstacksdk_version | default(omit) }}'
     state: '{{ _install_openstacksdk_state | default(omit) }}'
 
-# NOTE(ianw) 2021-03-03 stevedore < 3.3.0 has a bug where it creates a
-# constantly expanding set of cache files in
-# /root/.cache/python-endpoints when run under ansible in a /tmp
-# directory (this happens via cloud-launcher and openstacksdk).
-# Ensure the production host is updated, and drop a .disable file
-# for good measure
-- name: Ensure stevedore >= 3.3.0
-  pip:
-    name: 'stevedore>=3.3.0'
-- name: Add stevedore cache dir
-  file:
-    path: /root/.cache/python-entrypoints/
-    state: directory
-    mode: 0700
-- name: Add stevedore cache disable file
-  file:
-    path: /root/.cache/python-entrypoints/.disable
-    state: touch
-    mode: 0600
-
 - name: Ensure /etc/ansible and /etc/ansible/hosts
   file:
     state: directory