Fix issue where test leaves a dirty git tree

In 195a04f, a test was removed that had created a local repo in the
git_repos dir, but the cleanup from the after block was not removed.
This cleanup removes the .gitkeep file, which causes a dirty tree.

spec/models/manageiq/providers/embedded_ansible_spec.rb

@@ -4,15 +4,13 @@
  let(:manager) { provider.automation_manager }
 
  let(:consolidated_repo_path) { Ansible::Content::PLUGIN_CONTENT_DIR }
- let(:manager_repo_path) { GitRepository::GIT_REPO_DIRECTORY }
 
  before do
  EvmSpecHelper.local_miq_server
  described_class.seed
  end
 
  after do
- FileUtils.rm_rf(Dir.glob(File.join(manager_repo_path, "*")))
  FileUtils.rm_rf(Dir.glob(File.join(consolidated_repo_path, "*")))
  end