Replaces HEALS_EARS_2 with a component, adds a wearertargeting parent component for future use (#37530)

code: HEALS_EARS_2 is removed in favor of the earhealing component

code: wearertargeting component is available to subtype for components that want to target the wearer of an item rather than the item itself

code/modules/clothing/ears/_ears.dm

@@ -15,7 +15,11 @@
 	strip_delay = 15
 	equip_delay_other = 25
 	resistance_flags = FLAMMABLE
-	flags_2 = BANG_PROTECT_2|HEALS_EARS_2
+	flags_2 = BANG_PROTECT_2
+
+/obj/item/clothing/ears/earmuffs/ComponentInitialize()
+	. = ..()
+	AddComponent(/datum/component/earhealing)
 
 /obj/item/clothing/ears/headphones
 	name = "headphones"

code/modules/surgery/organs/ears.dm

@@ -27,14 +27,9 @@
 	// genetic deafness prevents the body from using the ears, even if healthy
 	if(C.has_trait(TRAIT_DEAF))
 		deaf = max(deaf, 1)
-	else
-		if(C.ears && (C.ears.flags_2 & HEALS_EARS_2))
-			deaf = max(deaf - 1, 1)
-			ear_damage = max(ear_damage - 0.1, 0)
-		// if higher than UNHEALING_EAR_DAMAGE, no natural healing occurs.
-		if(ear_damage < UNHEALING_EAR_DAMAGE)
-			ear_damage = max(ear_damage - 0.05, 0)
-			deaf = max(deaf - 1, 0)
+	else if(ear_damage < UNHEALING_EAR_DAMAGE) // if higher than UNHEALING_EAR_DAMAGE, no natural healing occurs.
+		ear_damage = max(ear_damage - 0.05, 0)
+		deaf = max(deaf - 1, 0)
 
 /obj/item/organ/ears/proc/restoreEars()
 	deaf = 0