global-functions: drop $Read

... which is no longer required now that RouterOS 7.12beta1
provides /terminal/ask.

global-functions.rsc

@@ -53,7 +53,6 @@
 :global ParseKeyValueStore;
 :global PrettyPrint;
 :global RandomDelay;
-:global Read;
 :global RequiredRouterOS;
 :global ScriptFromTerminal;
 :global ScriptInstallUpdate;
@@ -804,11 +803,6 @@
   :delay ([ $GetRandomNumber $1 ] . [ $EitherOr $2 "s" ]);
 }
 
-# read input from user
-:set Read do={
-  :return;
-}
-
 # check for required RouterOS version
 :set RequiredRouterOS do={
   :local Caller   [ :tostr $1 ];