Remove sensor_faction from uniforms (#7205)

# About the pull request

Removes the `sensor_faction` var from uniforms. It was vestigial and
never actually used.

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# Explain why it's good for the game

No need for pointless, unused code.
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
No player facing changes.

code/modules/clothing/under/marine_uniform.dm

@@ -527,7 +527,6 @@
 	worn_state = "upp_uniform"
 	min_cold_protection_temperature = ICE_PLANET_MIN_COLD_PROT
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_UPP
 	suit_restricted = list(/obj/item/clothing/suit/storage/marine/faction/UPP, /obj/item/clothing/suit/gimmick/jason, /obj/item/clothing/suit/storage/snow_suit/soviet, /obj/item/clothing/suit/storage/snow_suit/survivor, /obj/item/clothing/suit/storage/webbing)
 	flags_jumpsuit = UNIFORM_SLEEVE_ROLLABLE
 
@@ -696,7 +695,6 @@
 	icon_state = "colonist"
 	worn_state = "colonist"
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_COLONIST
 
 /obj/item/clothing/under/colonist/workwear
 	name = "grey workwear"
@@ -737,39 +735,34 @@
 	desc = "A stylish grey-green jumpsuit - standard issue for colonists. This version appears to have the symbol of the Colonial Liberation Front emblazoned in select areas."
 	icon_state = "clf_uniform"
 	worn_state = "clf_uniform"
-	sensor_faction = FACTION_CLF
 
 /obj/item/clothing/under/colonist/ua_civvies
 	name = "\improper UA gray utility uniform"
 	desc = "A stylish gray jumpsuit - standard issue for UA civilian support personnel."
 	icon_state = "ua_civvies"
 	worn_state = "ua_civvies"
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/colonist/wy_davisone
 	name = "\improper UA brown utility uniform"
 	desc = "A stylish brown jumpsuit - standard issue for UA civilian support personnel."
 	icon_state = "wy_davisone"
 	worn_state = "wy_davisone"
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/colonist/white_service
 	name = "white service uniform"
 	desc = "A white dress shirt and tie with sleek pants. Standard clothing for anyone on professional business."
 	icon_state = "CO_service"
 	worn_state = "CO_service"
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/colonist/wy_joliet_shopsteward
 	name = "steward utilities"
 	desc = "A stylish brown vest and shorts - uniforms like this are often worn by clerks and shop stewards."
 	icon_state = "wy_joliet_shopsteward"
 	worn_state = "wy_joliet_shopsteward"
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/tshirt
 	name = "T-shirt parent object"
@@ -782,7 +775,6 @@
 	worn_state = "tshirt_w_br"
 	displays_id = FALSE
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/tshirt/gray_blu
 	name = "gray T-shirt and jeans"
@@ -791,7 +783,6 @@
 	worn_state = "tshirt_gray_blu"
 	displays_id = FALSE
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/tshirt/r_bla
 	name = "red T-shirt and black pants"
@@ -800,7 +791,6 @@
 	worn_state = "tshirt_r_bla"
 	displays_id = FALSE
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_MARINE
 
 /obj/item/clothing/under/CM_uniform
 	name = "\improper Colonial Marshal uniform"

code/modules/clothing/under/under.dm

@@ -16,7 +16,6 @@
 	armor_internaldamage = CLOTHING_ARMOR_NONE
 	w_class = SIZE_MEDIUM
 	blood_overlay_type = "uniform"
-	var/sensor_faction = FACTION_MARINE
 	var/has_sensor = UNIFORM_HAS_SENSORS // For the crew computer
 	var/sensor_mode = SENSOR_MODE_LOCATION
 		/*

code/modules/cm_preds/yaut_items.dm

@@ -277,7 +277,6 @@
 	flags_heat_protection = BODY_FLAG_CHEST|BODY_FLAG_GROIN|BODY_FLAG_LEGS|BODY_FLAG_ARMS|BODY_FLAG_FEET|BODY_FLAG_HANDS
 	flags_item = ITEM_PREDATOR
 	has_sensor = UNIFORM_HAS_SENSORS
-	sensor_faction = FACTION_YAUTJA
 	siemens_coefficient = 0.9
 	min_cold_protection_temperature = ICE_PLANET_MIN_COLD_PROT
 

code/modules/gear_presets/cmb.dm

@@ -51,7 +51,6 @@
 		var/obj/item/clothing/under/uniform = new_human.w_uniform
 		if(istype(uniform))
 			uniform.has_sensor = UNIFORM_HAS_SENSORS
-			uniform.sensor_faction = FACTION_MARINE
 	return ..()
 
 //*****************************************************************************************************/

code/modules/gear_presets/colonist.dm

@@ -25,7 +25,6 @@
 	var/obj/item/clothing/under/uniform = new_human.w_uniform
 	if(istype(uniform))
 		uniform.has_sensor = UNIFORM_HAS_SENSORS
-		uniform.sensor_faction = FACTION_COLONIST
 	return ..()
 
 //*****************************************************************************************************/

code/modules/gear_presets/contractor.dm

@@ -54,7 +54,6 @@
 		var/obj/item/clothing/under/uniform = new_human.w_uniform
 		if(istype(uniform))
 			uniform.has_sensor = UNIFORM_HAS_SENSORS
-			uniform.sensor_faction = FACTION_CONTRACTOR
 	return ..()
 
 //*****************************************************************************************************/

code/modules/gear_presets/other.dm

@@ -626,7 +626,6 @@
 	var/obj/item/clothing/under/uniform = new_human.w_uniform
 	if(istype(uniform))
 		uniform.has_sensor = UNIFORM_HAS_SENSORS
-		uniform.sensor_faction = FACTION_COLONIST
 	new_human.job = "Zombie"
 	new_human.faction = faction
 	return ..()

code/modules/gear_presets/pmc.dm

@@ -50,7 +50,6 @@
 		var/obj/item/clothing/under/uniform = new_human.w_uniform
 		if(istype(uniform))
 			uniform.has_sensor = UNIFORM_HAS_SENSORS
-			uniform.sensor_faction = FACTION_PMC
 	return ..()
 
 

code/modules/gear_presets/royal_marines.dm

@@ -41,7 +41,6 @@
 		var/obj/item/clothing/under/uniform = new_human.w_uniform
 		if(istype(uniform))
 			uniform.has_sensor = UNIFORM_HAS_SENSORS
-			uniform.sensor_faction = FACTION_TWE
 	return ..()
 
 //*****************************************************************************************************/

code/modules/gear_presets/survivors/survivors.dm

@@ -105,7 +105,6 @@
 	var/obj/item/clothing/under/uniform = new_human.w_uniform
 	if(istype(uniform))
 		uniform.has_sensor = UNIFORM_HAS_SENSORS
-		uniform.sensor_faction = FACTION_COLONIST
 	return ..()
 
 /*

code/modules/gear_presets/synths.dm

@@ -164,7 +164,6 @@
 	var/obj/item/clothing/under/uniform = new_human.w_uniform
 	if(istype(uniform))
 		uniform.has_sensor = UNIFORM_HAS_SENSORS
-		uniform.sensor_faction = FACTION_COLONIST
 	return ..()
 
 /datum/equipment_preset/synth/survivor/medical_synth

code/modules/gear_presets/wy_goons.dm

@@ -51,7 +51,6 @@
 	var/obj/item/clothing/under/uniform = new_human.w_uniform
 	if(istype(uniform))
 		uniform.has_sensor = UNIFORM_HAS_SENSORS
-		uniform.sensor_faction = FACTION_WY
 	return ..()