Delete the following monitoring settings:

- Current login users:

  I am the solo user of this server.

- # of processes:

- HTTP service:

  If the Nagios is active, you know HTTP service works.

- ping:

  # of NIC is 1, so the host monitoring setting is enough.

- ssh:

  # of NIC is 1, and the upstart gurantees that SSH daemon is up.
Merge branch 'id/55' into dev