Revert "app-admin/stackdriver: Revert save container_name in logs"

This (functionally) reverts commit f862ff83384a0fbc4476743c349c72c2915deb71.
Note: this does not directly revert the commit, rather it reverts the
functionality (directly reverts fluentd-lakitu.conf and daemon.json),
and makes the appropiate revision changes to ebuild symlinks.

Reason for revert: Original reason for revert was resolved. (See
b/181299443#comment11 for reason, b/171583953 for fix.)

BUG=b/150877345
TEST=presubmit, validation tests, manually check behavior
RELEASE_NOTE=Stackdriver logs now record Docker container names by default.

Change-Id: Id02d863aaf433e3fe5d80f8414dbc663856906d8
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/17110
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
4 files changed