Fixes Infinite Slime Extract Explosions (#74988)

## About The Pull Request
Fixes #74984 by making oil extracts get deleted after they explode
Technically you can still explode multiple times by carrying multiple
extracts but that shouldn't be an issue, it takes all your inventory
space and you still only explode a limited number of times which can
devastate a department but it's nothing you couldn't do with other
explosives.

## Why It's Good For The Game
Rocket Propelled Research Director bad

## Changelog

🆑
fix: Stabilized Oil extracts no longer explode infinitely if your corpse
is immune to gibbing
/🆑

code/modules/research/xenobiology/crossbreeding/_status_effects.dm

@@ -920,6 +920,7 @@
 /datum/status_effect/stabilized/oil/tick()
 	if(owner.stat == DEAD)
 		explosion(owner, devastation_range = 1, heavy_impact_range = 2, light_impact_range = 4, flame_range = 5, explosion_cause = src)
+		qdel(linked_extract)
 	return ..()
 
 /datum/status_effect/stabilized/oil/get_examine_text()