Remove arrow key recommendation from tutor (helix-editor#3811)

Author: the-mikedavis

runtime/tutor

@@ -102,12 +102,12 @@ _________________________________________________________________
  --> Th stce misg so.
      This sentence is missing some text.
 
- Note: If you want to move the cursor while in Insert mode,
-       you may use the arrow keys instead of exiting and
-       reentering Insert mode.
  Note: The status bar will display your current mode.
        Notice that when you type i, 'NOR' changes to 'INS'.
 
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