How to abandon a planet gained through conflict? (vanilla)

[PeachFuzzzz]

For some reason I can't find a simple and direct answer to whether or not abandoning a planet is possible in the base game of Stellaris, i'm sure this has been asked 1 million times but everywhere I look gives a definite answer.

[Sero]

It is possible but neither easy nor cheap.
This is the method I know of so not the be all end all.
You have to manually resettle every single pop on that planet, the last pop will be extra expensive. And then the planet is unsettled.

[Ryika]

Close all jobs, and the pops will automatically resettle to other planets.
Doesn't work if the planet has Jobs that can't be close though, such as Criminals.

[mss73055]

If you're anything but ultra egalitarian you can resettle.

If you are in the process of ridding the planet of robots or if you are purging some species make sure such a pop is the last sole pop on the planet. This will abandon the planet without costing 200 influence.

[NixBoxDone]

Resettle all the pops, sell em on the slave market, purge if it's just pops you don't want, gift the system to an ally, make a sector put a goobernor in the new sector (sector is anything withing 4 hyperlane connections of the planet you choose to make a new sector with, make sure it's not going to contain stuff you actually want), then split the sector off as a new vassal/protectorate.
You could also check to see if you can use a planet cracker to turn your problem planet into monthly mineral income, but I'm not sure if that's possible.
Used to be impossible to crack habitable planets in your own systems before they changed that, but I've never actually had reason to check if you can crack em if there's actually a colony on em.