Revert "12/21 modernizations from TG live"

code/modules/admin/whitelist.dm

@@ -1,22 +0,0 @@
-#define WHITELISTFILE "config/whitelist.txt"
-
-var/list/whitelist
-
-/proc/load_whitelist()
-	whitelist = list()
-	for(var/line in file2list(WHITELISTFILE))
-		if(!line)
-			continue
-		if(findtextEx(line,"#",1,2))
-			continue
-		whitelist += line
-
-	if(!whitelist.len)
-		whitelist = null
-
-/proc/check_whitelist(var/ckey)
-	if(!whitelist)
-		return FALSE
-	. = (ckey in whitelist)
-
-#undef WHITELISTFILE