Reduced the delay after user delete operation

Change-Id: Ibc329950d2196da981f86069699efc42e3a200a8
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/lib/ipmi_client.robot b/lib/ipmi_client.robot
index 0dccdbf..47f0744 100755
--- a/lib/ipmi_client.robot
+++ b/lib/ipmi_client.robot
@@ -416,5 +416,5 @@
       ${user_info}=  Get User Info  ${userid}
       Run Keyword If  "${user_info['user_name']}" != ""
       ...  Run IPMI Standard Command  user set name ${userid} ""
-      Sleep  10s
+      Sleep  5s
     END