Revert "12/21 modernizations from TG live"

code/modules/mob/dead/observer/say.dm

@@ -6,13 +6,25 @@
 
 	log_say("Ghost/[src.key] : [message]")
 
+	if(jobban_isbanned(src, "OOC"))
+		src << "<span class='danger'>You have been banned from deadchat.</span>"
+		return
+
+	if (src.client)
+		if(src.client.prefs.muted & MUTE_DEADCHAT)
+			src << "<span class='danger'>You cannot talk in deadchat (muted).</span>"
+			return
+
+		if (src.client.handle_spam_prevention(message,MUTE_DEADCHAT))
+			return
+
 	. = src.say_dead(message)
 
 /mob/dead/observer/Hear(message, atom/movable/speaker, message_langs, raw_message, radio_freq, list/spans)
 	if(radio_freq)
 		var/atom/movable/virtualspeaker/V = speaker
 
-		if(isAI(V.source))
+		if(istype(V.source, /mob/living/silicon/ai))
 			var/mob/living/silicon/ai/S = V.source
 			speaker = S.eyeobj
 		else