Revert "Put fluentd-metrics service and servicemonitor in the kube-system namespace."
Revert "Put fluentd-metrics service and servicemonitor in the kube-system namespace."

This reverts commit 651509b0d8d7d499bdfb16e75eeaeccf487a7115.

Reason for revert: Breaks integration test: http://b/160455048

Change-Id: If3015a83727cc6b7b05119b453dd9cc162523f5e
GitOrigin-RevId: ba52884a75a0f1e9f0a2aba0f25f7350244fefab

googlecloudrobotics/core,googlecloudrobotics/core,googlecloudrobotics/core