Step 13
http://i.imgur.com/uPg0Ou2.png
Select the unplayed households and then click on not in world, you will see the Npc's you just saw at the restaurant.
Step 14
http://i.imgur.com/ycEkUzY.png
click on each one and delete them one by one. Please remember to not delete Npc's your sims has an important relationship with.
Step 15
http://i.imgur.com/uC40eLv.png
You have to confirm each delete as well, so make sure you are not deleting important Npc's
Step 16
http://i.imgur.com/1WCpMc5.png
So now all the potential workers are gone. I have no other Npc's there because I am not fussed about them and did not have relationships with any of them.
Hi Simmers a big change has happened with added tab's in an update we had. We now have two tab options. We have My households and Other households, you will need to check and delete both of their Not in world/unplayed sims. Just be super careful, important npc's like Father Winter and the sorts are in there so delete accordingly. Thanks to @J2Trumpet for bringing that to my attention. Below is a pic of what the new tab looks like ;)
https://i.imgur.com/qYk2069.png
Last steps to follow
