CP-3604: removing alerts, and logging an error for clock going backwards.
CP-3604: removing alerts, and logging an error for clock going backwards.

Signed-off-by: Rok Strniša <ef2e6fb7f9c4d68ca2b20c62606309353789e818@citrix.com>

djs55/xcp-networkd,koushikcgit/xcp-rrdd,djs55/xcp-rrdd,koushikcgit/xcp-rrdd,simonjbeaumont/xcp-rrdd,robhoes/squeezed,koushikcgit/xcp-networkd,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,johnelse/xcp-rrdd,djs55/squeezed,djs55/xcp-rrdd,djs55/xcp-networkd,sharady/xcp-networkd,johnelse/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd