Removes most instances of item_color

Notable exception is for clothing/under, those will have to be removed once item_state override is implemented.

code/modules/clothing/spacesuits/alien.dm

@@ -9,12 +9,10 @@
 /obj/item/clothing/head/helmet/space/skrell/white
 	icon_state = "skrell_helmet_white"
 	item_state = "skrell_helmet_white"
-	item_color = "skrell_helmet_white"
 
 /obj/item/clothing/head/helmet/space/skrell/black
 	icon_state = "skrell_helmet_black"
 	item_state = "skrell_helmet_black"
-	item_color = "skrell_helmet_black"
 
 /obj/item/clothing/suit/space/skrell
 	name = "Skrellian voidsuit"
@@ -28,12 +26,10 @@
 /obj/item/clothing/suit/space/skrell/white
 	icon_state = "skrell_suit_white"
 	item_state = "skrell_suit_white"
-	item_color = "skrell_suit_white"
 
 /obj/item/clothing/suit/space/skrell/black
 	icon_state = "skrell_suit_black"
 	item_state = "skrell_suit_black"
-	item_color = "skrell_suit_black"
 
 // Vox space gear (vaccuum suit, low pressure armour)
 // Can't be equipped by any other species due to bone structure and vox cybernetics.
@@ -112,7 +108,6 @@
 	name = "alien clothing"
 	desc = "This doesn't look very comfortable."
 	icon_state = "vox-casual-1"
-	item_color = "vox-casual-1"
 	item_state = "vox-casual-1"
 	body_parts_covered = LEGS
 
@@ -120,7 +115,6 @@
 	name = "alien robes"
 	desc = "Weird and flowing!"
 	icon_state = "vox-casual-2"
-	item_color = "vox-casual-2"
 	item_state = "vox-casual-2"
 
 /obj/item/clothing/gloves/yellow/vox
@@ -130,7 +124,6 @@
 	item_state = "gloves-vox"
 	siemens_coefficient = 0
 	permeability_coefficient = 0.05
-	item_color = "gloves-vox"
 	species_restricted = list("Vox")
 	sprite_sheets = list("Vox" = 'icons/mob/species/vox/gloves.dmi')
 /obj/item/clothing/shoes/magboots/vox

code/modules/clothing/spacesuits/void/merc.dm

@@ -4,7 +4,6 @@
 	desc = "An advanced helmet designed for work in special operations. Property of Gorlex Marauders."
 	icon_state = "rig0-syndie"
 	item_state = "syndie_helm"
-	item_color = "syndie"
 	armor = list(melee = 60, bullet = 50, laser = 30,energy = 15, bomb = 35, bio = 100, rad = 60)
 	siemens_coefficient = 0.6
 	species_restricted = list("exclude","Unathi","Tajara","Skrell","Vox", "Xenomorph", "Xenomorph Drone", "Xenomorph Hunter", "Xenomorph Sentinel", "Xenomorph Queen")

code/modules/clothing/spacesuits/void/station.dm

@@ -22,7 +22,6 @@
 	desc = "A special helmet designed for work in a hazardous, low pressure environment. Has reinforced plating."
 	icon_state = "rig0-mining"
 	item_state = "mining_helm"
-	item_color = "mining"
 	armor = list(melee = 50, bullet = 5, laser = 20,energy = 5, bomb = 55, bio = 100, rad = 20)
 	light_overlay = "helmet_light_dual"
 
@@ -39,7 +38,6 @@
 	desc = "A special helmet designed for work in a hazardous, low pressure environment. Has minor radiation shielding."
 	icon_state = "rig0-medical"
 	item_state = "medical_helm"
-	item_color = "medical"
 	armor = list(melee = 30, bullet = 5, laser = 20,energy = 5, bomb = 25, bio = 100, rad = 50)
 
 /obj/item/clothing/suit/space/void/medical
@@ -56,7 +54,6 @@
 	desc = "A special helmet designed for work in a hazardous, low pressure environment. Has an additional layer of armor."
 	icon_state = "rig0-sec"
 	item_state = "sec_helm"
-	item_color = "sec"
 	armor = list(melee = 60, bullet = 10, laser = 30, energy = 5, bomb = 45, bio = 100, rad = 10)
 	siemens_coefficient = 0.7
 	light_overlay = "helmet_light_dual"
@@ -76,7 +73,6 @@
 	name = "atmospherics voidsuit helmet"
 	icon_state = "rig0-atmos"
 	item_state = "atmos_helm"
-	item_color = "atmos"
 	armor = list(melee = 40, bullet = 5, laser = 20,energy = 5, bomb = 35, bio = 100, rad = 50)
 	max_heat_protection_temperature = FIRE_HELMET_MAX_HEAT_PROTECTION_TEMPERATURE
 	light_overlay = "helmet_light_dual"

code/modules/clothing/spacesuits/void/wizard.dm

@@ -4,7 +4,6 @@
 	desc = "A bizarre gem-encrusted helmet that radiates magical energies."
 	icon_state = "rig0-wiz"
 	item_state = "wiz_helm"
-	item_color = "wiz"
 	unacidable = 1 //No longer shall our kind be foiled by lone chemists with spray bottles!
 	armor = list(melee = 40, bullet = 20, laser = 20,energy = 20, bomb = 35, bio = 100, rad = 60)
 	siemens_coefficient = 0.7