Revert "DEV: Queue jobs in tests by default."

Too risky for now

This reverts commit be28154d3b.

plugins/discourse-narrative-bot/spec/user_spec.rb

@@ -78,6 +78,7 @@ describe User do
         describe 'when welcome message is configured to be delayed' do
           before do
             SiteSetting.discourse_narrative_bot_welcome_post_delay = 100
+            SiteSetting.queue_jobs = true
           end
 
           it 'should delay the welcome post until user logs in' do