Updated hackfest_multivdu: removed SSH access password, public key file will be used instead

Change-Id: I24dc11e5a8e1f344db49ab7a85c698242f6b555a
Signed-off-by: aguilarherna <daguilarh@indra.es>
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/robot-systest/testsuite/hackfest_multivdu.robot b/robot-systest/testsuite/hackfest_multivdu.robot
index 67cb910..c30ef94 100644
--- a/robot-systest/testsuite/hackfest_multivdu.robot
+++ b/robot-systest/testsuite/hackfest_multivdu.robot
@@ -30,8 +30,8 @@
 
 *** Variables ***
 ${ns_id}   ${EMPTY}
-${username}   osm
-${password}   osm4u
+${username}   ubuntu
+${password}   ${EMPTY}
 ${vnf_member_index}   1
 ${vnf_ip_addr}   ${EMPTY}
 ${ns_config}   {vld: [ {name: mgmtnet, vim-network-name: %{VIM_MGMT_NET}} ] }