[MIRROR] Clears unused research var (#12685)

Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/modules/reagents/reagent_containers/hypospray.dm

@@ -226,7 +226,6 @@
 	icon_state = "autoinjector"
 	amount_per_transfer_from_this = 15
 	volume = 15
-	origin_tech = list(TECH_BIO = 4)
 	filled_reagents = list(REAGENT_ID_INAPROVALINE = 15)
 
 /obj/item/reagent_containers/hypospray/autoinjector/biginjector/empty //for the autolathe

code/modules/reagents/reagent_containers/spray.dm

@@ -179,7 +179,6 @@
 	w_class = ITEMSIZE_NORMAL
 	max_transfer_amount = null
 	volume = 600
-	origin_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 3, TECH_ENGINEERING = 3)
 
 /obj/item/reagent_containers/spray/chemsprayer/Spray_at(atom/A as mob|obj, mob/user)
 	playsound(src, 'sound/effects/spray3.ogg', rand(50,1), -6)