Blindness Accessability Buff (#2828)

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## About The Pull Request
People can now use various scanners without requiring eyesight.
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## Why It's Good For The Game
It's 505 FSC and you're telling me we've rolled back accessibility tools
for the blind? While it might be the player's choice to take a quirk
that limits their abilities (and we compensate them with points
accordingly) I hardly think it's necessary to remove their ability to
engage with some of the more meaningful mechanics.

Let me have my blind roboticist. Please.
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## Changelog

:cl:
tweak: blind characters can now use various scanners, bringing the
frontier up to accessibility standards across the galaxy
/:cl:

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code/game/objects/items/devices/scanners.dm

@@ -140,7 +140,7 @@ GENE SCANNER
 
 // Used by the PDA medical scanner too
 /proc/healthscan(mob/user, mob/living/M, mode = SCANNER_VERBOSE, advanced = FALSE)
-	if(isliving(user) && (user.incapacitated() || user.is_blind()))
+	if(isliving(user) && (user.incapacitated()))
 		return
 
 	// the final list of strings to render
@@ -456,7 +456,7 @@ GENE SCANNER
 /obj/item/analyzer/attack_self(mob/user)
 	add_fingerprint(user)
 
-	if (user.stat || user.is_blind())
+	if (user.stat)
 		return
 
 	var/turf/location = user.loc
@@ -636,7 +636,7 @@ GENE SCANNER
 	custom_materials = list(/datum/material/iron=30, /datum/material/glass=20)
 
 /obj/item/slime_scanner/attack(mob/living/M, mob/living/user)
-	if(user.stat || user.is_blind())
+	if(user.stat)
 		return
 	if (!isslime(M))
 		to_chat(user, "<span class='warning'>This device can only scan slimes!</span>")