DEV: Remove unused DiscoursePlugin class (#9715)

spec/components/discourse_plugin_spec.rb

@@ -1,56 +0,0 @@
-# frozen_string_literal: true
-
-require 'rails_helper'
-
-describe DiscoursePlugin do
-
-  class TestPlugin < DiscoursePlugin
-    module SomeModule
-    end
-
-    module TestMixin
-    end
-  end
-
-  let(:registry) { mock }
-  let(:plugin) { TestPlugin.new(registry) }
-
-  describe ".mixins" do
-    it "finds its mixins" do
-      expect(TestPlugin.mixins).to eq([TestPlugin::TestMixin])
-    end
-  end
-
-  it "delegates adding js to the registry" do
-    registry.expects(:register_js).with('test.js', any_parameters)
-    plugin.register_js('test.js')
-  end
-
-  it "delegates adding css to the registry" do
-    registry.expects(:register_css).with('test.css', 'test')
-    plugin.register_css('test.css', 'test')
-  end
-
-  it "delegates creating archetypes" do
-    registry.expects(:register_archetype).with('banana', oh: 'no!')
-    plugin.register_archetype('banana', oh: 'no!')
-  end
-
-  context 'registering for callbacks' do
-    before do
-      plugin.stubs(:hello)
-      @proc = plugin.listen_for(:hello).first
-    end
-
-    after do
-      DiscourseEvent.off(:hello, &@proc)
-    end
-
-    it "calls the method when it is triggered" do
-      plugin.expects(:hello).with('there')
-      DiscourseEvent.trigger(:hello, 'there')
-    end
-
-  end
-
-end