[fuchsia_system_metrics] delete unused metric active_minutes

* cobalt_system_metrics isn't actually logging any event so
  removing the metrics as folks were confused why there was no data
  coming in

Change-Id: I18519eb7d3a67d102e9ca9e4c2b25fd097eeedd8
Reviewed-on: https://fuchsia-review.googlesource.com/c/cobalt-registry/+/683784
Fuchsia-Auto-Submit: Francois Rousseau <frousseau@google.com>
Reviewed-by: Cameron Dale <camrdale@google.com>
Privacy-Approval: Cameron Dale <camrdale@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
diff --git a/fuchsia/fuchsia_system_metrics/metrics.yaml b/fuchsia/fuchsia_system_metrics/metrics.yaml
index e5c8fd9..111c51b 100644
--- a/fuchsia/fuchsia_system_metrics/metrics.yaml
+++ b/fuchsia/fuchsia_system_metrics/metrics.yaml
@@ -525,41 +525,6 @@
     expiration_date: "2023/05/04"
 
 ################################################################################
-# Active Minutes
-#
-# Every 15 minutes we log the number of minutes that the device was "active"
-# during the previous 15 minutes period.
-################################################################################
-- id: 9
-  metric_name: active_minutes
-  metric_type: EVENT_COUNT
-  replacement_metric_id: 109
-  reports:
-    - report_name: active_minutes_stats
-      id: 1
-      report_type: NUMERIC_AGGREGATION
-      system_profile_field: [PRODUCT_NAME, CHANNEL, SYSTEM_VERSION]
-  meta_data:
-    max_release_stage: GA
-    expiration_date: "2022/01/07"
-
-- id: 109
-  metric_name: active_minutes_migrated
-  metric_type: INTEGER
-  metric_semantics: [CPU, USAGE_COUNTING]
-  metric_units: MINUTES
-  reports:
-    - report_name: active_minutes_means
-      id: 1
-      report_type: FLEETWIDE_MEANS
-      system_profile_field: [PRODUCT_NAME, CHANNEL, SYSTEM_VERSION]
-      privacy_level: NO_ADDED_PRIVACY
-  meta_data:
-    max_release_stage: GA
-    expiration_date: "2023/05/04"
-
-
-################################################################################
 # Error log count
 #
 # Every 15 minutes we log the number of error logs that were recorded during the
@@ -760,4 +725,4 @@
     expiration_date: "2023/05/04"
 
 # Deleted metric IDs that must not be reused.
-deleted_metric_ids: [3,4,5,7]
+deleted_metric_ids: [3,4,5,7,9,109]