Remove entire test files directory for test builds

spec/support/setup_builds_storage.rb

@@ -3,17 +3,15 @@ RSpec.configure do |config|
     Rails.root.join('tmp/tests/builds')
   end
 
+  config.before(:suite) do
+    Settings.gitlab_ci['builds_path'] = builds_path
+  end
+
   config.before(:each) do
     FileUtils.mkdir_p(builds_path)
-    FileUtils.touch(File.join(builds_path, ".gitkeep"))
-    Settings.gitlab_ci['builds_path'] = builds_path
   end
 
   config.after(:each) do
-    Dir[File.join(builds_path, '*')].each do |path|
-      next if File.basename(path) == '.gitkeep'
-
-      FileUtils.rm_rf(path)
-    end
+    FileUtils.rm_rf(builds_path)
   end
 end