message: Remove duplicate paragraph in celery tasks documentation
diff: @@ -691,10 +691,6 @@ users are active on the platform.
  Celery Tasks
  ------------
  -On large analytic databases, it's common to run background jobs, reports
  -and/or queries that execute for minutes or hours. In certain cases, we need
  -to support long running tasks that execute beyond the typical web request's
  -timeout (30-60 seconds).
  On large analytic databases, it's common to run queries that
  execute for minutes or hours.
  