Debian: Use parse_ipa_version from redhat.

Needs librpm8 installed.

Reviewed-By: Christian Heimes <cheimes@redhat.com>

ipaplatform/debian/tasks.py

@@ -72,10 +72,6 @@ class DebianTaskNamespace(RedHatTaskNamespace):
         # Debian doesn't have authselect
         return True
 
-    @staticmethod
-    def parse_ipa_version(version):
-        return BaseTaskNamespace.parse_ipa_version(version)
-
     def configure_httpd_wsgi_conf(self):
         # Debian doesn't require special mod_wsgi configuration
         pass