You can turn of this if you go to admin -> config tab -> plugin manager -> Click on EPiServer -> Click on overview and scroll down to scheduled job and uncheck the subscriptions.
These and even more powerful filtering/config is currently under development for this plugin: https://github.com/valdisiljuconoks/TechFellow.ScheduledJobOverview
Hope will come handy when it's published. :)
Is there a way to remove/hide a EPiServer (built-in) scheduled job from the admin GUI?
We're using a custom job for handling subscriptions and the standard (EPiServer built-in) job is confusing the customer plus it seems unnecessary to display it if it's not intended to be used on this particular site.