ipaplatform: Remove redundant definitions

The variables path_namespace and task_namespace in the base platform
are not used anywhere in the rest of the codebase and are just
debris from previous implementation.

This patch removes them.

Reviewed-By: Tomas Babej <tbabej@redhat.com>

ipaplatform/base/paths.py

@@ -346,6 +346,3 @@ class BasePathNamespace(object):
     BAK2DB = '/usr/sbin/bak2db'
     DB2BAK = '/usr/sbin/db2bak'
     KDCPROXY_CONFIG = '/etc/ipa/kdcproxy/kdcproxy.conf'
-
-
-path_namespace = BasePathNamespace

ipaplatform/base/tasks.py

@@ -217,6 +217,3 @@ class BaseTaskNamespace(object):
         :return: object implementing proper __cmp__ method for version compare
         """
         return parse_version(version)
-
-
-task_namespace = BaseTaskNamespace()