Remove allow_group_deploy_token feature flag

Changelog: removed

app/models/group_deploy_token.rb

@@ -9,8 +9,6 @@ class GroupDeployToken < ApplicationRecord
   validates :deploy_token_id, uniqueness: { scope: [:group_id] }
 
   def has_access_to?(requested_project)
-    return false unless Feature.enabled?(:allow_group_deploy_token, default_enabled: true)
-
     requested_project_group = requested_project&.group
     return false unless requested_project_group
     return true if requested_project_group.id == group_id

config/feature_flags/development/allow_group_deploy_token.yml

----
-name: allow_group_deploy_token
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/23460
-rollout_issue_url: 
-milestone: '12.8'
-type: development
-group: group::release
-default_enabled: true

spec/models/deploy_token_spec.rb

@@ -248,68 +248,54 @@ RSpec.describe DeployToken do
           deploy_token.groups << group
         end
 
-        context 'and the allow_group_deploy_token feature flag is turned off' do
-          it 'is false' do
-            stub_feature_flags(allow_group_deploy_token: false)
-
-            is_expected.to be_falsy
-          end
+        context 'and the passed-in project does not belong to any group' do
+          it { is_expected.to be_falsy }
         end
 
-        context 'and the allow_group_deploy_token feature flag is turned on' do
-          before do
-            stub_feature_flags(allow_group_deploy_token: true)
-          end
+        context 'and the passed-in project belongs to the token group' do
+          it 'is true' do
+            group.projects << project
 
-          context 'and the passed-in project does not belong to any group' do
-            it { is_expected.to be_falsy }
+            is_expected.to be_truthy
           end
+        end
 
-          context 'and the passed-in project belongs to the token group' do
-            it 'is true' do
-              group.projects << project
+        context 'and the passed-in project belongs to a subgroup' do
+          let(:child_group) { create(:group, parent_id: group.id) }
+          let(:grandchild_group) { create(:group, parent_id: child_group.id) }
 
-              is_expected.to be_truthy
-            end
+          before do
+            grandchild_group.projects << project
           end
 
-          context 'and the passed-in project belongs to a subgroup' do
-            let(:child_group) { create(:group, parent_id: group.id) }
-            let(:grandchild_group) { create(:group, parent_id: child_group.id) }
-
-            before do
-              grandchild_group.projects << project
-            end
-
-            context 'and the token group is an ancestor (grand-parent) of this group' do
-              it { is_expected.to be_truthy }
-            end
+          context 'and the token group is an ancestor (grand-parent) of this group' do
+            it { is_expected.to be_truthy }
+          end
 
-            context 'and the token group is not ancestor of this group' do
-              let(:child2_group) { create(:group, parent_id: group.id) }
+          context 'and the token group is not ancestor of this group' do
+            let(:child2_group) { create(:group, parent_id: group.id) }
 
-              it 'is false' do
-                deploy_token.groups = [child2_group]
+            it 'is false' do
+              deploy_token.groups = [child2_group]
 
-                is_expected.to be_falsey
-              end
+              is_expected.to be_falsey
             end
           end
+        end
 
-          context 'and the passed-in project does not belong to the token group' do
-            it { is_expected.to be_falsy }
-          end
+        context 'and the passed-in project does not belong to the token group' do
+          it { is_expected.to be_falsy }
+        end
 
-          context 'and the project belongs to a group that is parent of the token group' do
-            let(:super_group) { create(:group) }
-            let(:deploy_token) { create(:deploy_token, :group) }
-            let(:group) { create(:group, parent_id: super_group.id) }
+        context 'and the project belongs to a group that is parent of the token group' do
+          let(:super_group) { create(:group) }
+          let(:deploy_token) { create(:deploy_token, :group) }
+          let(:group) { create(:group, parent_id: super_group.id) }
 
-            it 'is false' do
-              super_group.projects << project
+          it 'is false' do
+            super_group.projects << project
 
-              is_expected.to be_falsey
-            end
+            is_expected.to be_falsey
           end
         end
       end