Fix Improper Destroys (#22166)

We think the culprit behind this one was VSCode autofilling Destroy()
with . = ..()
which is improper. There's a **surprising** number of improper order
Destroy() procs in the repo, so I might as well get all of them in one
pass. Several of these files are associated with currently known hard
dels, such as the modular computer and organ related dels. More than a
couple were my own mistakes, since the Destroy() or Removed() . = ..()
behavior on signal registering objects also prevents the signal from
being unregistered, which similarly creates a hard del.

Signed-off-by: VMSolidus <evilexecutive@gmail.com>

code/modules/client/preferences.dm

@@ -224,8 +224,8 @@ GLOBAL_LIST_EMPTY_TYPED(preferences_datums, /datum/preferences)
 			load_and_update_character()
 
 /datum/preferences/Destroy()
-	. = ..()
 	QDEL_LIST(char_render_holders)
+	return ..()
 
 /datum/preferences/proc/load_and_update_character(var/slot)
 	load_character(slot)

code/modules/clothing/shoes/magboots.dm

@@ -27,9 +27,9 @@
 	. += "Its mag-pulse traction system appears to be [state]."
 
 /obj/item/clothing/shoes/magboots/Destroy()
-	. = ..()
 	src.shoes = null
 	src.wearer = null
+	return ..()
 
 /obj/item/clothing/shoes/magboots/proc/set_slowdown(mob/user)
 	slowdown = shoes? max(0, shoes.slowdown): 0	//So you can't put on magboots to make you walk faster.

code/modules/custom_ka/core.dm

@@ -277,8 +277,8 @@
 	queue_icon_update()
 
 /obj/item/gun/custom_ka/Destroy()
-	. = ..()
 	STOP_PROCESSING(SSprocessing, src)
+	return ..()
 
 /obj/item/gun/custom_ka/process()
 	if(installed_cell)

code/modules/materials/material_sheets.dm

@@ -316,7 +316,7 @@
 	icon_has_variants = TRUE
 
 /obj/item/stack/material/plasteel/Destroy()
-	. = ..()
+	return ..()
 
 /obj/item/stack/material/plasteel/full/Initialize()
 	. = ..()

code/modules/mob/living/silicon/ai/ai.dm

@@ -363,8 +363,8 @@ GLOBAL_LIST_INIT(ai_verbs_default, list(
 	use_power_oneoff(1) // Just incase we need to wake up the power system.
 
 /obj/machinery/ai_powersupply/Destroy()
-	. = ..()
 	powered_ai = null
+	return ..()
 
 /obj/machinery/ai_powersupply/process()
 	if(!powered_ai || powered_ai.stat == DEAD)

code/modules/mob/living/silicon/robot/drone/drone.dm

@@ -264,8 +264,8 @@
 		request_player()
 
 /mob/living/silicon/robot/drone/construction/matriarch/Destroy()
-	. = ..()
 	SSghostroles.remove_spawn_atom("matriarchmaintdrone", src)
+	return ..()
 
 /mob/living/silicon/robot/drone/construction/matriarch/request_player()
 	SSghostroles.add_spawn_atom("matriarchmaintdrone", src)

code/modules/mob/living/simple_animal/hostile/changeling.dm

@@ -203,9 +203,9 @@
 	mind.assigned_role = "Changeling"
 
 /mob/living/simple_animal/hostile/lesser_changeling/Destroy()
-	. = ..()
 	QDEL_NULL(occupant)
 	QDEL_NULL(untransform_occupant)
+	return ..()
 
 /mob/living/simple_animal/hostile/lesser_changeling/proc/add_untransform_verb()
 	if(!occupant)

code/modules/mob/living/simple_animal/hostile/giant_spider.dm

@@ -179,8 +179,8 @@
 		SSghostroles.add_spawn_atom("servant", src)
 
 /mob/living/simple_animal/hostile/giant_spider/nurse/servant/Destroy()
-	. = ..()
 	SSghostroles.remove_spawn_atom("servant", src)
+	return ..()
 
 /mob/living/simple_animal/hostile/giant_spider/on_attack_mob(var/mob/hit_mob, var/obj/item/organ/external/limb)
 	. = ..()

code/modules/mob/living/simple_animal/hostile/hivebots/hivebot.dm

@@ -250,8 +250,8 @@
 		SSghostroles.add_spawn_atom("hivebotdestroyer", src)
 
 /mob/living/simple_animal/hostile/hivebot/playable/Destroy()
-	. = ..()
 	SSghostroles.remove_spawn_atom("hivebotdestroyer", src)
+	return ..()
 
 /mob/living/simple_animal/hostile/hivebot/playable/ranged
 	name = "Hivebot marksman"
@@ -277,8 +277,8 @@
 		SSghostroles.add_spawn_atom("hivebotmarksman", src)
 
 /mob/living/simple_animal/hostile/hivebot/playable/ranged/Destroy()
-	. = ..()
 	SSghostroles.remove_spawn_atom("hivebotmarksman", src)
+	return ..()
 
 /mob/living/simple_animal/hostile/hivebot/playable/overseer
 	name = "Hivebot overseer"
@@ -303,8 +303,8 @@
 		SSghostroles.add_spawn_atom("hivebotoverseer", src)
 
 /mob/living/simple_animal/hostile/hivebot/playable/overseer/Destroy()
-	. = ..()
 	SSghostroles.remove_spawn_atom("hivebotoverseer", src)
+	return ..()
 
 /mob/living/simple_animal/hostile/hivebot/playable/overseer/verb/build_bot()
 	set name = "Assemble hivebot"

code/modules/modular_computers/NTNet/NTNRC/user.dm

@@ -9,7 +9,6 @@
 	GLOB.ntnet_global.chat_users.Add(src)
 
 /datum/ntnet_user/Destroy(force)
-	. = ..()
 
 	//This notifies every client that might have this as a client to deactivate and clear the reference
 	for(var/datum/computer_file/program/chat_client/client as anything in GLOB.ntnet_global.chat_clients)
@@ -19,6 +18,7 @@
 	channels = null
 	dm_channels = null
 	clients = null
+	return ..()
 
 /datum/ntnet_user/proc/generateUsernameIdCard(var/obj/item/card/id/card)
 	if(!card)

code/modules/modular_computers/computers/subtypes/dev_handheld.dm

@@ -23,7 +23,7 @@
 	set_icon()
 
 /obj/item/modular_computer/handheld/Destroy()
-	. = ..()
+	return ..()
 
 /obj/item/modular_computer/handheld/proc/set_icon()
 	icon_state_unpowered = icon_state

code/modules/modular_computers/computers/subtypes/preset_laptop.dm

@@ -4,7 +4,7 @@
 	icon_state = "laptop-closed"
 
 /obj/item/modular_computer/laptop/preset/Destroy()
-	. = ..()
+	return ..()
 
 /obj/item/modular_computer/laptop/preset/install_default_hardware()
 	..()

code/modules/modular_computers/computers/subtypes/preset_telescreen.dm

@@ -1,5 +1,5 @@
 /obj/item/modular_computer/telescreen/preset/Destroy()
-	. = ..()
+	return ..()
 
 /obj/item/modular_computer/telescreen/preset/install_default_hardware()
 	..()

code/modules/organs/subtypes/augment/augments/auxiliary_heart.dm

@@ -22,11 +22,11 @@
 	RegisterSignal(owner, COMSIG_HEART_PUMP_EVENT, PROC_REF(stabilize_circulation), override = TRUE)
 
 /obj/item/organ/internal/augment/bioaug/auxiliary_heart/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	UnregisterSignal(owner, COMSIG_HEART_PUMP_EVENT)
+	return ..()
 
 /obj/item/organ/internal/augment/bioaug/auxiliary_heart/proc/stabilize_circulation(var/implantee, var/obj/item/organ/internal/heart/heart, var/blood_volume, var/recent_pump, var/pulse_mod, var/min_efficiency)
 	SIGNAL_HANDLER

code/modules/organs/subtypes/augment/augments/gravity_adaptations.dm

@@ -21,11 +21,11 @@
 	RegisterSignal(owner, COMSIG_GRAVITY_WEAKNESS_EVENT, PROC_REF(negate_weakness), override = TRUE)
 
 /obj/item/organ/internal/augment/bioaug/gravity_adaptations/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	UnregisterSignal(owner, COMSIG_GRAVITY_WEAKNESS_EVENT)
+	return ..()
 
 /obj/item/organ/internal/augment/bioaug/gravity_adaptations/proc/negate_weakness(var/implantee, var/canceled)
 	SIGNAL_HANDLER

code/modules/organs/subtypes/augment/augments/mind_blanker.dm

@@ -24,12 +24,12 @@
 	RegisterSignal(owner, COMSIG_PSI_CHECK_SENSITIVITY, PROC_REF(modify_sensitivity), override = TRUE)
 
 /obj/item/organ/internal/augment/bioaug/mind_blanker/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	UnregisterSignal(owner, COMSIG_PSI_MIND_POWER)
 	UnregisterSignal(owner, COMSIG_PSI_CHECK_SENSITIVITY)
+	return ..()
 
 /obj/item/organ/internal/augment/bioaug/mind_blanker/proc/cancel_power(var/implantee, var/caster, var/cancelled, var/cancel_return, var/wide_field)
 	SIGNAL_HANDLER

code/modules/organs/subtypes/augment/augments/platelet_factories.dm

@@ -24,12 +24,12 @@
 	RegisterSignal(owner, COMSIG_HEART_BLEED_EVENT, PROC_REF(reduce_bloodloss), override = TRUE)
 
 /obj/item/organ/internal/augment/bioaug/platelet_factories/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	UnregisterSignal(owner, COMSIG_HEART_PUMP_EVENT)
 	UnregisterSignal(owner, COMSIG_HEART_BLEED_EVENT)
+	return ..()
 
 /obj/item/organ/internal/augment/bioaug/platelet_factories/proc/stroke_risk(var/implantee, var/obj/item/organ/internal/heart/heart, var/blood_volume, var/recent_pump, var/pulse_mod, var/min_efficiency)
 	SIGNAL_HANDLER

code/modules/organs/subtypes/augment/augments/psi_receiver.dm

@@ -34,11 +34,11 @@
 	RegisterSignal(owner, COMSIG_PSI_CHECK_SENSITIVITY, PROC_REF(modify_sensitivity), override = TRUE)
 
 /obj/item/organ/internal/augment/bioaug/psi/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	UnregisterSignal(owner, COMSIG_PSI_CHECK_SENSITIVITY)
+	return ..()
 
 /obj/item/organ/internal/augment/bioaug/psi/proc/modify_sensitivity(var/implantee, var/effective_sensitivity)
 	SIGNAL_HANDLER

code/modules/organs/subtypes/augment/augments/subdermal_carapace.dm

@@ -22,9 +22,9 @@
 	owner.AddComponent(/datum/component/armor, list(MELEE = ARMOR_MELEE_SMALL, BULLET = ARMOR_BALLISTIC_MINOR))
 
 /obj/item/organ/internal/augment/bioaug/subdermal_carapace/removed()
-	. = ..()
 	if(!owner)
-		return
+		return ..()
 
 	var/datum/component/armor/armor_component = owner.GetComponent(/datum/component/armor)
 	qdel(armor_component)
+	return ..()

code/modules/power/sensors/powernet_sensor.dm

@@ -28,8 +28,8 @@
 	SSmachinery.all_sensors += src
 
 /obj/machinery/power/sensor/Destroy()
-	. = ..()
 	SSmachinery.all_sensors -= src
+	return ..()
 
 // Proc: auto_set_name()
 // Parameters: None

code/modules/synthesized_instruments/event_manager.dm

@@ -44,9 +44,9 @@
 	var/kill_loop = 0
 
 /datum/musical_event_manager/Destroy(force)
-	. = ..()
 	deactivate()
 	QDEL_LIST(events)
+	return ..()
 
 /datum/musical_event_manager/proc/push_event(datum/sound_player/source, datum/sound_token/token, time, volume)
 	if (istype(source) && istype(token) && volume >= 0 && volume <= 100)

code/modules/synthesized_instruments/sound_token.dm

@@ -51,6 +51,6 @@
 	. = ..()
 
 /datum/sound_token/instrument/Destroy()
-	. = ..()
 	player.unsubscribe(src)
 	player = null
+	return ..()