CA-35165: Remove a spurious exception when refreshing VM_guest_metrics when the VM_guest_metrics doesn't exist (ie for dom0)
CA-35165: Remove a spurious exception when refreshing VM_guest_metrics when the VM_guest_metrics doesn't exist (ie for dom0)

Signed-off-by: David Scott <63c9eb0ea83039690fefa11afe17873ba8278a56@eu.citrix.com>

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