tty bug with multi-line prompts

This effectively reverts 1ad2415315
because it was interfering with prompts that spanned more than one
line (by inserting '--More-- + erase' between displaying of prompt and
getting input for the answer).

So we're back to the situation where autodescribe feedback when moving
the cursor will leave text on the second line if it generates text too
wide for one line.  (^R redraws the screen correctly.)

win/tty/topl.c

@@ -1,4 +1,4 @@
-/* NetHack 3.6	topl.c	$NHDT-Date: 1560387439 2019/06/13 00:57:19 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.45 $ */
+/* NetHack 3.6	topl.c	$NHDT-Date: 1560600658 2019/06/15 12:10:58 $  $NHDT-Branch: NetHack-3.6 $:$NHDT-Revision: 1.46 $ */
 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
 /*-Copyright (c) Michael Allison, 2009. */
 /* NetHack may be freely redistributed.  See license for details. */
@@ -156,8 +156,10 @@ const char *str;
         cl_end();
         addtopl(str);
 
+#if 0   /* this doesn't work as intended; it disrupts multi-line prompts */
         if (ttyDisplay->cury && ttyDisplay->toplin != 3)
             more();
+#endif
     }
 }