[system-tools-backends-clone] Remove unneeded Use Authen::PAM

[Milan Bouchet-Valat <milanbv src gnome org>]

commit 22e7d5740db08aa4f5da09dbcb7d1368822d4c15
Author: Milan Bouchet-Valat <nalimilan club fr>
Date:   Sat Feb 6 11:17:35 2010 +0100

    Remove unneeded Use Authen::PAM
    
    This has been committed mistakingly with 73b1da9, but was never needed.

 Users/Users.pm |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/Users/Users.pm b/Users/Users.pm
index a3d12fc..24b806e 100644
--- a/Users/Users.pm
+++ b/Users/Users.pm
@@ -46,8 +46,6 @@
 
 package Users::Users;
 
-use Authen::PAM;
-
 use Utils::Util;
 use Utils::Report;
 use Utils::File;