m/n/c/n/hostsfile: do not log individual entries

This gets extremely spammy when spinning up large clusters as it
emits all entries for every new hostsfile into the log.
For a fresh cluster of n nodes this is O(n^2) log lines, which is
far too many. The number of entries is already logged and should be
sufficient for debugging purposes.

Change-Id: I6bf4e489aea52bad3a32a8a0f900e832b6a4f197
Reviewed-on: https://review.monogon.dev/c/monogon/+/2298
Reviewed-by: Tim Windelschmidt <tim@monogon.tech>
Tested-by: Jenkins CI
Reviewed-by: Serge Bazanski <serge@monogon.tech>
diff --git a/metropolis/node/core/network/hostsfile/hostsfile.go b/metropolis/node/core/network/hostsfile/hostsfile.go
index 9878a93..4407169 100644
--- a/metropolis/node/core/network/hostsfile/hostsfile.go
+++ b/metropolis/node/core/network/hostsfile/hostsfile.go
@@ -112,7 +112,6 @@
 	for _, nid := range nodeIdsSorted {
 		addr := m[nid].address
 		line := fmt.Sprintf("%s %s", addr, nid)
-		supervisor.Logger(ctx).Infof("Hosts entry: %s", line)
 		lines = append(lines, []byte(line))
 	}
 	lines = append(lines, []byte(""))