Fix a portability issue with md_hasclreol(). Some games' implementation of md_hasclreol() poked around in ncurses internals, which does not work for some ncurses build configuration. Most games did not actually call md_hasclreol(), so it was removed. There is a standard terminfo function which can retrieve the value of the clr_eol capability, so this was used for rogue5.

/*
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

extern bool My_term,	/* user specied terminal	*/
extern int _tty_ch;	/* channel with tty on it	*/