Fixes tesh being able to use all prosthetics

Thanks to Aronai for the solution

code/modules/organs/robolimbs.dm

@@ -42,7 +42,7 @@ var/const/standard_monitor_styles = "blank=ipc_blank;\
 	var/lifelike										 // If set, appears organic.
 	var/skin_tone										 // If set, applies skin tone rather than part color
 	var/blood_color = "#030303"
-	var/list/species_cannot_use = list("Promethean")	 //VOREStation Edit
+	var/list/species_cannot_use = list(SPECIES_TESHARI, SPECIES_PROMETHEAN)	 //VOREStation Edit
 	var/list/monitor_styles			 		 			 //If empty, the model of limbs offers a head compatible with monitors.
 	var/parts = BP_ALL						 			 //Defines what parts said brand can replace on a body.
 	var/health_hud_intensity = 1						 // Intensity modifier for the health GUI indicator.

code/modules/organs/robolimbs_vr.dm

@@ -176,5 +176,10 @@
 	lifelike = 1
 	suggested_species = "Teshari"
 
+/datum/robolimb/dsi_teshari/New()
+	species_cannot_use = all_species.Copy()
+	species_cannot_use -= SPECIES_TESHARI
+	..()
+
 /obj/item/weapon/disk/limb/dsi_teshari
 	company = "DSI - Teshari"