sysmon: Fix references to ts_mon units

BUG=chromium:741082
TEST=None

Change-Id: I9e270c294a66ce46e44747b9f5bfd29dcb0aedf8
Reviewed-on: https://chromium-review.googlesource.com/568161
Tested-by: Allen Li <ayatane@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Commit-Queue: Allen Li <ayatane@chromium.org>
diff --git a/scripts/sysmon/puppet_metrics.py b/scripts/sysmon/puppet_metrics.py
index 2b203e7..6212bf9 100644
--- a/scripts/sysmon/puppet_metrics.py
+++ b/scripts/sysmon/puppet_metrics.py
@@ -14,6 +14,7 @@
 from chromite.lib import cros_logging as logging
 from chromite.lib import metrics
 
+
 logger = logging.getLogger(__name__)
 
 LAST_RUN_FILE = '/var/lib/cros_puppet/state/last_run_summary.yaml'
@@ -35,12 +36,10 @@
     ' run')
 _times_metric = metrics.FloatMetric(
     'puppet/times',
-    description='Time taken to perform various parts of the last puppet run',
-    units=metrics.MetricsDataUnits.SECONDS)
+    description='Time taken to perform various parts of the last puppet run')
 _age_metric = metrics.FloatMetric(
     'puppet/age',
-    description='Time since last run',
-    units=metrics.MetricsDataUnits.SECONDS)
+    description='Time since last run')
 
 
 class _PuppetRunSummary(object):