Merge branch '391730-remove-duplicate-product-planning-metrics' into 'master'

Mark duplicate metrics for group product planning removed

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/150311



Merged-by: Niko Belokolodov <nbelokolodov@gitlab.com>
Approved-by: Niko Belokolodov <nbelokolodov@gitlab.com>
Co-authored-by: Sebastian Rehm <srehm@gitlab.com>

config/metrics/counts_28d/20210216182106_design_action_monthly.yml

 ---
 data_category: optional
 key_path: redis_hll_counters.source_code.design_action_monthly
-description: Count of total design actions (upload, delete, comment, reply)
+description: Removed as duplicate of usage_activity_by_stage_monthly.create.action_monthly_active_users_design_management
 product_section: dev
 product_stage: create
 product_group: source_code
 value_type: number
-status: active
+status: removed
 time_frame: 28d
 data_source: redis_hll
 instrumentation_class: RedisHLLMetric
@@ -22,3 +22,5 @@ tier:
 - ultimate
 performance_indicator_type: []
 milestone: "<13.9"
+milestone_removed: "17.0"
+removed_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/150311