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

Too risky for now

This reverts commit be28154d3b9289a249d413d462705cd075375888.

spec/models/user_spec.rb

@@ -1066,7 +1066,6 @@ describe User do
 
       context "with a reply" do
         before do
-          SiteSetting.queue_jobs = false
           PostCreator.new(Fabricate(:user),
                             raw: 'whatever this is a raw post',
                             topic_id: topic.id,
@@ -1238,6 +1237,7 @@ describe User do
   describe "refresh_avatar" do
     it "enqueues the update_gravatar job when automatically downloading gravatars" do
       SiteSetting.automatically_download_gravatars = true
+      SiteSetting.queue_jobs = true
 
       user = Fabricate(:user)