Remove the internal metric for measuring idle uploads.

Bug: 113288
Change-Id: Iadc8df8c90ed7e99cb094defcba9f2935462a5f5
Reviewed-on: https://fuchsia-review.googlesource.com/c/cobalt-registry/+/769314
Privacy-Approval: Zach Bush <zmbush@google.com>
Commit-Queue: Cameron Dale <camrdale@google.com>
Reviewed-by: Zach Bush <zmbush@google.com>
diff --git a/cobalt_internal/metrics/metrics.yaml b/cobalt_internal/metrics/metrics.yaml
index 6df2b76..1a4d698 100644
--- a/cobalt_internal/metrics/metrics.yaml
+++ b/cobalt_internal/metrics/metrics.yaml
@@ -352,33 +352,6 @@
     max_release_stage: GA
     expiration_date: "2023/05/06"
 
-#####################################################################
-# idle_observation_upload_migrated
-#
-# Whenever Cobalt performs an upload we log "1" along with event
-# codes representing the current upload_strategy and device state.
-#####################################################################
-- id: 111
-  metric_name: idle_observation_upload_migrated
-  metric_type: OCCURRENCE
-  metric_semantics: [USAGE_COUNTING]
-  metric_dimensions:
-    - dimension: device_state
-      event_codes:
-        0: Unreported # Device state not requested
-        1: Active
-        2: Idle
-        3: Unknown # Device state requested unsuccessfully
-  reports:
-    - report_name: occurrence_counts
-      id: 1
-      report_type: FLEETWIDE_OCCURRENCE_COUNTS
-      privacy_level: NO_ADDED_PRIVACY
-      system_profile_field: [BOARD_NAME, PRODUCT_NAME, SYSTEM_VERSION, CHANNEL]
-  meta_data:
-    max_release_stage: GA
-    expiration_date: "2023/05/06"
-
 ############################################################################
 # store_usage
 #
@@ -463,4 +436,4 @@
     expiration_date: "2023/03/09"
 
 # Deleted metric IDs that must not be reused.
-deleted_metric_ids: [1,2,3,4,5,6,7,8,9,10,11,16,18]
+deleted_metric_ids: [1,2,3,4,5,6,7,8,9,10,11,16,18,111]