Move check_rp_filter_disabled check to role::lvs

nrpe checks should defined in the role classes anyway, plus the previous
setup actually implemented then on the icinga host and not the actual
LVS servers

Change-Id: I8f528babbd89c341d4ba3015f93c7c17fdadb16f
Merge "Move check_rp_filter_disabled check to role::lvs" into production