FIX: load balanced servers do not share monotonic clock

This means then when a service is load balanced and you reach rate limits
there was a case where they counting was way off

also remove the stub from clock_gettime cause we need to be super careful with
it, so we should probably just stub by hand when needed

spec/rails_helper.rb

@@ -203,7 +203,6 @@ def freeze_time(now = Time.now)
   Time.stubs(:now).returns(time)
   Date.stubs(:today).returns(datetime.to_date)
   TrackTimeStub.stubs(:stubbed).returns(true)
-  Process.stubs(:clock_gettime).with(Process::CLOCK_MONOTONIC).returns(datetime.to_f)
 
   if block_given?
     begin
@@ -219,7 +218,6 @@ def unfreeze_time
   Time.unstub(:now)
   Date.unstub(:today)
   TrackTimeStub.unstub(:stubbed)
-  Process.unstub(:clock_gettime)
 end
 
 def file_from_fixtures(filename, directory = "images")