Stop supporting ViewComponent 2

.github/workflows/ruby.yml

@@ -19,7 +19,6 @@ jobs:
         experimental: [false]
         additional_engine_cart_rails_options: [""]
         additional_name: [""]
-        view_component_version: ["~> 3.12"]
         include:
           - ruby: "3.1"
             rails_version: 6.1.7
@@ -36,12 +35,6 @@ jobs:
             blacklight_version: "github"
             experimental: true
             additional_name: Blacklight main branch
-          - ruby: "3.2"
-            rails_version: "7.0.4"
-            blacklight_version: "~> 7.0"
-            experimental: false
-            view_component_version: "~> 2.83"
-            additional_name: "/ ViewComponent 2"
           - ruby: "3.3"
             rails_version: "8.0.0"
             blacklight_version: "~> 8.0"
@@ -57,7 +50,6 @@ jobs:
     env:
       RAILS_VERSION: ${{ matrix.rails_version }}
       BLACKLIGHT_VERSION: ${{ matrix.blacklight_version }}
-      VIEW_COMPONENT_VERSION: ${{ matrix.view_component_version }}
       ENGINE_CART_RAILS_OPTIONS: "--skip-git --skip-listen --skip-spring --skip-keeps --skip-action-cable --skip-coffee --skip-test ${{ matrix.additional_engine_cart_rails_options }}"
     steps:
       - uses: actions/checkout@v4

spec/components/blacklight/gallery/slideshow_preview_component_spec.rb

@@ -52,11 +52,7 @@
     end
 
     it 'renders the correct slide number' do
-      if VIEW_COMPONENT_VERSION < 3
-        expect(rendered).to have_css '[data-slide-to=\"4\"][data-bs-slide-to=\"4\"]'
-      else
-        expect(rendered).to have_css '[data-slide-to=\"5\"][data-bs-slide-to=\"5\"]'
-      end
+      expect(rendered).to have_css '[data-slide-to=\"5\"][data-bs-slide-to=\"5\"]'
     end
 
     context 'when the presenter returns nothing' do

spec/spec_helper.rb

@@ -7,7 +7,6 @@
 require 'rspec/its'
 require 'rspec/rails'
 require 'rspec/active_model/mocks'
-require 'view_component_v2_test_helpers'
 
 require 'selenium-webdriver'
 
@@ -20,9 +19,4 @@
 RSpec.configure do |c|
   c.infer_spec_type_from_file_location!
   c.include ViewComponent::TestHelpers, type: :component
-  view_component_version = Gem.loaded_specs['view_component'].version
-  VIEW_COMPONENT_VERSION = view_component_version.segments.first
-  if VIEW_COMPONENT_VERSION < 3
-    c.include ViewComponentV2TestHelpers, type: :component
-  end
 end

spec/test_app_templates/Gemfile.extra

@@ -3,7 +3,3 @@ if ENV['BLACKLIGHT_VERSION'] == 'github'
 elsif ENV['BLACKLIGHT_VERSION'] && !ENV['BLACKLIGHT_VERSION'].empty?
   gem 'blacklight', ENV['BLACKLIGHT_VERSION']
 end
-
-unless ENV['VIEW_COMPONENT_VERSION'].to_s == ""
-  gem 'view_component', ENV.fetch('VIEW_COMPONENT_VERSION')
-end