Move feature flags service ping metric to CE

We moved feature flags to CE, but forgot move this metric

ee/lib/ee/gitlab/usage_data.rb

@@ -194,7 +194,6 @@ module EE
                 dependency_list_usages_total: redis_usage_data { ::Gitlab::UsageCounters::DependencyList.usage_totals[:total] },
                 epics: count(::Epic),
                 epic_issues: count(::EpicIssue),
-                feature_flags: count(Operations::FeatureFlag),
                 geo_nodes: count(::GeoNode),
                 geo_event_log_max_id: alt_usage_data { maximum_id(Geo::EventLog) || 0 },
                 ldap_group_links: count(::LdapGroupLink),

ee/spec/lib/ee/gitlab/usage_data_spec.rb

@@ -39,8 +39,6 @@ RSpec.describe Gitlab::UsageData do
 
       create(:jira_integration, project: projects[0], issues_enabled: true, project_key: 'GL')
 
-      create(:operations_feature_flag, project: projects[0])
-
       create(:issue, project: projects[1])
       create(:issue, health_status: :on_track, project: projects[1])
       create(:issue, health_status: :at_risk, project: projects[1])
@@ -97,7 +95,6 @@ RSpec.describe Gitlab::UsageData do
         epics
         epics_deepest_relationship_level
         epic_issues
-        feature_flags
         geo_nodes
         geo_event_log_max_id
         issues_with_health_status
@@ -124,7 +121,6 @@ RSpec.describe Gitlab::UsageData do
         network_policy_drops
       ))
 
-      expect(count_data[:feature_flags]).to eq(1)
       expect(count_data[:status_page_projects]).to eq(1)
       expect(count_data[:status_page_issues]).to eq(1)
       expect(count_data[:issues_with_health_status]).to eq(2)

lib/gitlab/usage_data.rb

@@ -108,6 +108,7 @@ module Gitlab
             deployments: deployment_count(Deployment),
             successful_deployments: deployment_count(Deployment.success),
             failed_deployments: deployment_count(Deployment.failed),
+            feature_flags: count(Operations::FeatureFlag),
             # rubocop: enable UsageData/LargeTable:
             environments: count(::Environment),
             clusters: count(::Clusters::Cluster),

spec/factories/usage_data.rb

@@ -123,6 +123,8 @@ FactoryBot.define do
         create_list(:project_snippet, 2, project: projects[0], created_at: n.days.ago)
         create(:personal_snippet, created_at: n.days.ago)
       end
+
+      create(:operations_feature_flag, project: projects[0])
     end
   end
 end

spec/lib/gitlab/usage_data_spec.rb

@@ -622,6 +622,7 @@ RSpec.describe Gitlab::UsageData, :aggregate_failures do
       expect(count_data[:deployments]).to eq(4)
       expect(count_data[:successful_deployments]).to eq(2)
       expect(count_data[:failed_deployments]).to eq(2)
+      expect(count_data[:feature_flags]).to eq(1)
       expect(count_data[:snippets]).to eq(6)
       expect(count_data[:personal_snippets]).to eq(2)
       expect(count_data[:project_snippets]).to eq(4)