Remove ci_runner_projects_disable_joins feature flag

Changelog: other

app/models/ci/runner.rb

@@ -67,7 +67,7 @@ module Ci
 
     has_many :builds
     has_many :runner_projects, inverse_of: :runner, autosave: true, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
-    has_many :projects, through: :runner_projects, disable_joins: -> { ::Feature.enabled?(:ci_runner_projects_disable_joins, default_enabled: :yaml) }
+    has_many :projects, through: :runner_projects, disable_joins: true
     has_many :runner_namespaces, inverse_of: :runner, autosave: true
     has_many :groups, through: :runner_namespaces, disable_joins: true
 

config/feature_flags/development/ci_runner_projects_disable_joins.yml

----
-name: ci_runner_projects_disable_joins
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/78372
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/350538
-milestone: '14.8'
-type: development
-group: group::pipeline execution
-default_enabled: false

spec/models/ci/runner_spec.rb

@@ -31,16 +31,6 @@ RSpec.describe Ci::Runner do
         expect(runner.projects.count).to eq(1)
       end
     end
-
-    context 'when ci_runner_projects_disable_joins is disabled' do
-      before do
-        stub_feature_flags(ci_runner_projects_disable_joins: false)
-      end
-
-      it 'creates a cross-database query' do
-        expect { runner.projects.count }.to raise_error(Database::PreventCrossJoins::CrossJoinAcrossUnsupportedTablesError)
-      end
-    end
   end
 
   describe 'validation' do