Disable canary deployment user callout

ee/app/helpers/ee/user_callouts_helper.rb

@@ -16,10 +16,7 @@ module EE
     THREAT_MONITORING_INFO         = 'threat_monitoring_info'
 
     def show_canary_deployment_callout?(project)
-      !user_dismissed?(CANARY_DEPLOYMENT) &&
-        show_promotions? &&
-        # use :canary_deployments if we create a feature flag for it in the future
-        !project.feature_available?(:deploy_board)
+      false
     end
 
     def render_enable_hashed_storage_warning

ee/spec/helpers/ee/user_callouts_helper_spec.rb

@@ -141,10 +141,6 @@ RSpec.describe EE::UserCalloutsHelper do
     end
 
     context 'when user needs to upgrade to canary deployments' do
-      before do
-        allow(project).to receive(:feature_available?).with(:deploy_board).and_return(false)
-      end
-
       context 'when user has dismissed' do
         before do
           allow(helper).to receive(:user_dismissed?).and_return(true)
@@ -158,19 +154,10 @@ RSpec.describe EE::UserCalloutsHelper do
           allow(helper).to receive(:user_dismissed?).and_return(false)
         end
 
-        it { is_expected.to be_truthy }
-      end
-    end
-
-    context 'when user already has access to canary deployments' do
-      before do
-        allow(project).to receive(:feature_available?).with(:deploy_board).and_return(true)
-        allow(helper).to receive(:user_dismissed?).and_return(false)
-      end
-
         it { is_expected.to be_falsey }
       end
     end
+  end
 
   describe '#render_dashboard_gold_trial' do
     let_it_be(:namespace) { create(:namespace) }