[MIRROR] Clears unused research var (#12685)

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

code/game/objects/items/weapons/implants/implant.dm

@@ -502,7 +502,6 @@ the implant may become unstable and either pre-maturely inject the subject or si
 /obj/item/implant/death_alarm
 	name = "death alarm implant"
 	desc = "An alarm which monitors host vital signs and transmits a radio message upon death."
-	origin_tech = list(TECH_MATERIAL = 1, TECH_BIO = 2, TECH_DATA = 1)
 	known_implant = TRUE
 	var/mobname = "Will Robinson"
 
@@ -597,7 +596,6 @@ the implant may become unstable and either pre-maturely inject the subject or si
 	icon_state = "implant_evil"
 	var/activation_emote = "sigh"
 	var/obj/item/scanned = null
-	origin_tech = list(TECH_MATERIAL = 4, TECH_BIO = 2, TECH_ILLEGAL = 2)
 
 /obj/item/implant/compressed/get_data()
 	var/dat = {"

code/game/objects/items/weapons/implants/implantaugment.dm

@@ -5,7 +5,6 @@
 	name = "nanite fabrication implant"
 	desc = "A buzzing implant covered in a writhing layer of metal insects."
 	icon_state = "implant_evil"
-	origin_tech = list(TECH_MATERIAL = 5, TECH_BIO = 2, TECH_ILLEGAL = 2)
 
 	var/organ_to_implant = /obj/item/organ/internal/augment/bioaugment/thermalshades
 	var/organ_display_name = "unknown organ"