Fixes flaky language holder failure (#76477)

## About The Pull Request


![image](https://github.com/tgstation/tgstation/assets/51863163/d4f2fd51-6884-4623-b208-f670b6cdb75d)

## Why It's Good For The Game

Flaky failure

## Changelog

🆑 Melbert
fix: Fixes a runtime from people with aphasia trauma getting deleted
/🆑

code/datums/brain_damage/severe.dm

@@ -33,8 +33,10 @@
 	..()
 
 /datum/brain_trauma/severe/aphasia/on_lose()
-	owner.remove_blocked_language(subtypesof(/datum/language/), LANGUAGE_APHASIA)
-	owner.remove_language(/datum/language/aphasia, TRUE, TRUE, LANGUAGE_APHASIA)
+	if(!QDELING(owner))
+		owner.remove_blocked_language(subtypesof(/datum/language/), LANGUAGE_APHASIA)
+		owner.remove_language(/datum/language/aphasia, TRUE, TRUE, LANGUAGE_APHASIA)
+
 	..()
 
 /datum/brain_trauma/severe/blindness

code/game/atoms_movable.dm

@@ -1447,6 +1447,10 @@
 
 /// Gets or creates the relevant language holder. For mindless atoms, gets the local one. For atom with mind, gets the mind one.
 /atom/movable/proc/get_language_holder(get_minds = TRUE)
+	if(QDELING(src))
+		CRASH("get_language_holder() called on a QDELing atom, \
+			this will try to re-instantiate the language holder that's about to be deleted, which is bad.")
+
 	if(!language_holder)
 		language_holder = new initial_language_holder(src)
 	return language_holder