cursor: purge unused cursor functions

only a couple were in use and only by unused echo helpers which have now
themselves been removed, so nothing in this file is needed.

Partial fix for #952880

Gbp-Dch: Short
Closes: #952880

functions/cursor.sh

@@ -1,74 +0,0 @@
-#!/bin/sh
-
-## live-build(7) - System Build Scripts
-## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
-##
-## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
-## This is free software, and you are welcome to redistribute it
-## under certain conditions; see COPYING for details.
-
-
-Cursor_goto_position ()
-{
-	__LINE="${1}"
-	__COLUMN="${2}"
-
-	#echo -e "[${__LINE};${__COLUMN};H\c"
-	printf "[${__LINE};${__COLUMN};H"
-}
-
-Cursor_save_position ()
-{
-	#echo -e "\c"
-	printf ""
-}
-
-Cursor_restore_position ()
-{
-	#echo -e "\c"
-	printf ""
-}
-
-Cursor_line_up ()
-{
-	__LINES="${1}"
-
-	#echo -e "[${__LINES}A\c"
-	printf "[${__LINES}A"
-}
-
-Cursor_line_down ()
-{
-	__LINES="${1}"
-
-	#echo -e "[${__LINES}B\c"
-	printf "[${__LINES}B"
-}
-
-Cursor_columns_forward ()
-{
-	__COLUMNS="${1}"
-
-	#echo -e "[${__COLUMNS}C\c"
-	printf "[${__COLUMNS}C"
-}
-
-Cursor_columns_backward ()
-{
-	__COLUMNS="${1}"
-
-	#echo -e "[${__COLUMNS}D\c"
-	printf "[${__COLUMNS}D"
-}
-
-Cursor_clear_screen ()
-{
-	#echo -e "\c"
-	printf ""
-}
-
-Cursor_erase_EOL ()
-{
-	#echo -e "\c"
-	printf ""
-}