Cleanup group empty state experiment

- no longer needed as experiment is over.

Changelog: removed

app/controllers/groups_controller.rb

@@ -206,8 +206,6 @@ def unfoldered_environment_names
   protected
   def render_show_html
-    record_experiment_user(:invite_members_empty_group_version_a) if ::Gitlab.com?
-
     render 'groups/show', locals: { trial: params[:trial] }
   end

app/helpers/invite_members_helper.rb

@@ -17,10 +17,6 @@ def directly_invite_members?
     end
   end
-  def invite_group_members?(group)
-    experiment_enabled?(:invite_members_empty_group_version_a) && Ability.allowed?(current_user, :admin_group_member, group)
-  end
-
   def invite_accepted_notice(member)
     case member.source
     when Project

app/views/shared/groups/_empty_state.html.haml

@@ -6,8 +6,3 @@
     %h4= s_("GroupsEmptyState|A group is a collection of several projects.")
     %p= s_("GroupsEmptyState|If you organize your projects under a group, it works like a folder.")
     %p= s_("GroupsEmptyState|You can manage your group member’s permissions and access to each project in the group.")
-    - if invite_group_members?(@group)
-      = link_to _('Invite your team'),
-        group_group_members_path(@group),
-        class: 'gl-button btn btn-confirm-secondary',
-        data: { track_event: 'click_invite_team_group_empty_state', track_label: 'invite_team_group_empty_state' }

config/feature_flags/experiment/invite_members_empty_group_version_a_experiment_percentage.yml

----
-name: invite_members_empty_group_version_a_experiment_percentage
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/45689
-rollout_issue_url: https://gitlab.com/gitlab-org/growth/team-tasks/-/issues/280
-milestone: '13.6'
-type: experiment
-group: group::expansion
-default_enabled: false

lib/gitlab/experimentation.rb

@@ -34,10 +34,6 @@
 module Gitlab
   module Experimentation
     EXPERIMENTS = {
-      invite_members_empty_group_version_a: {
-        tracking_category: 'Growth::Expansion::Experiment::InviteMembersEmptyGroupVersionA',
-        use_backwards_compatible_subject_index: true
-      },
       remove_known_trial_form_fields_welcoming: {
         tracking_category: 'Growth::Conversion::Experiment::RemoveKnownTrialFormFieldsWelcoming',
         rollout_strategy: :user

locale/gitlab.pot

@@ -18218,9 +18218,6 @@ msgstr ""
 msgid "Invite members"
 msgstr ""
-msgid "Invite your team"
-msgstr ""
-
 msgid "InviteEmail|%{inviter} invited you to join the %{project_or_group_name} %{project_or_group} as a %{role}"
 msgstr ""

spec/helpers/invite_members_helper_spec.rb

@@ -126,42 +126,4 @@
       end
     end
   end
-
-  context 'with group' do
-    let_it_be(:group) { create(:group) }
-
-    describe "#invite_group_members?" do
-      context 'when the user is an owner' do
-        before do
-          group.add_owner(owner)
-          allow(helper).to receive(:current_user) { owner }
-        end
-
-        it 'returns false' do
-          allow(helper).to receive(:experiment_enabled?).with(:invite_members_empty_group_version_a) { false }
-
-          expect(helper.invite_group_members?(group)).to eq false
-        end
-
-        it 'returns true' do
-          allow(helper).to receive(:experiment_enabled?).with(:invite_members_empty_group_version_a) { true }
-
-          expect(helper.invite_group_members?(group)).to eq true
-        end
-      end
-
-      context 'when the user is a developer' do
-        before do
-          group.add_developer(developer)
-          allow(helper).to receive(:current_user) { developer }
-        end
-
-        it 'returns false' do
-          allow(helper).to receive(:experiment_enabled?).with(:invite_members_empty_group_version_a) { true }
-
-          expect(helper.invite_group_members?(group)).to eq false
-        end
-      end
-    end
-  end
 end

spec/lib/gitlab/experimentation_spec.rb

@@ -2,19 +2,6 @@
 require 'spec_helper'
-# As each associated, backwards-compatible experiment gets cleaned up and removed from the EXPERIMENTS list, its key will also get removed from this list. Once the list here is empty, we can remove the backwards compatibility code altogether.
-# Originally created as part of https://gitlab.com/gitlab-org/gitlab/-/merge_requests/45733 for https://gitlab.com/gitlab-org/gitlab/-/issues/270858.
-RSpec.describe Gitlab::Experimentation::EXPERIMENTS do
-  it 'temporarily ensures we know what experiments exist for backwards compatibility' do
-    expected_experiment_keys = [:invite_members_empty_group_version_a]
-
-    backwards_compatible_experiment_keys = described_class.filter { |_, v| v[:use_backwards_compatible_subject_index] }.keys
-
-    expect(backwards_compatible_experiment_keys).not_to be_empty, "Oh, hey! Let's clean up that :use_backwards_compatible_subject_index stuff now :D"
-    expect(backwards_compatible_experiment_keys).to match(expected_experiment_keys)
-  end
-end
-
 RSpec.describe Gitlab::Experimentation do
   using RSpec::Parameterized::TableSyntax