Cleanup up all instances of using var/ definitions in proc parameters. (#52728)

* var/list cleanup

* The rest of the owl

* plushvar bad

* Can't follow my own advice.

code/modules/lighting/lighting_area.dm

@@ -2,7 +2,7 @@
 	luminosity           = TRUE
 	var/dynamic_lighting = DYNAMIC_LIGHTING_ENABLED
 
-/area/proc/set_dynamic_lighting(var/new_dynamic_lighting = DYNAMIC_LIGHTING_ENABLED)
+/area/proc/set_dynamic_lighting(new_dynamic_lighting = DYNAMIC_LIGHTING_ENABLED)
 	if (new_dynamic_lighting == dynamic_lighting)
 		return FALSE
 

code/modules/lighting/lighting_atom.dm

@@ -43,7 +43,7 @@
 
 // Should always be used to change the opacity of an atom.
 // It notifies (potentially) affected light sources so they can update (if needed).
-/atom/proc/set_opacity(var/new_opacity)
+/atom/proc/set_opacity(new_opacity)
 	if (new_opacity == opacity)
 		return
 

code/modules/lighting/lighting_object.dm

@@ -33,7 +33,7 @@
 	needs_update = TRUE
 	SSlighting.objects_queue += src
 
-/atom/movable/lighting_object/Destroy(var/force)
+/atom/movable/lighting_object/Destroy(force)
 	if (force)
 		SSlighting.objects_queue -= src
 		if (loc != myturf)

code/modules/lighting/lighting_source.dm

@@ -71,7 +71,7 @@
 
 
 // This proc will cause the light source to update the top atom, and add itself to the update queue.
-/datum/light_source/proc/update(var/atom/new_top_atom)
+/datum/light_source/proc/update(atom/new_top_atom)
 	// This top atom is different.
 	if (new_top_atom && new_top_atom != top_atom)
 		if(top_atom != source_atom && top_atom.light_sources) // Remove ourselves from the light sources of that top atom.
@@ -141,7 +141,7 @@
 
 	effect_str = null
 
-/datum/light_source/proc/recalc_corner(var/datum/lighting_corner/C)
+/datum/light_source/proc/recalc_corner(datum/lighting_corner/C)
 	LAZYINITLIST(effect_str)
 	if (effect_str[C]) // Already have one.
 		REMOVE_CORNER(C)