Remove extra ID segment from one module

Author: ousleyp

modules/virt-configuring-downward-metrics.adoc

@@ -3,7 +3,7 @@
 // * virt/monitoring/virt-exposing-downward-metrics.adoc
 
 :_mod-docs-content-type: PROCEDURE
-[id="virt-configuring-downward-metrics_virt-using-downward-metrics_{context}"]
+[id="virt-configuring-downward-metrics_{context}"]
 = Configuring a downward metrics device
 
 You enable the capturing of downward metrics for a host VM by creating a configuration file that includes a `downwardMetrics` device. Adding this device establishes that the metrics are exposed through a `virtio-serial` port.