Removes cortical borers. No, I am not sorry. (#18161)

* Removes cortical borers. No, I am not sorry.

* Icon purge

code/game/verbs/suicide.dm

@@ -63,11 +63,6 @@
 		to_chat(src, "You can't commit suicide before the game starts!")
 		return
 
-	// No more borergrief, one way or the other
-	if(has_brain_worms())
-		to_chat(src, "You try to bring yourself to commit suicide, but - something prevents you!")
-		return
-
 	if(suiciding)
 		to_chat(src, "You're already committing suicide! Be patient!")
 		return