Revert "client-barcode: Turn off console echo (experiment for now, idea by Andy Gunschl)"

This reverts commit 9880b1ebc1.

client-barcode/freitagskasse.py

@@ -19,8 +19,6 @@ import os
 import time
 import urllib2
 import select
-import termios
-import atexit
 
 from display import Display
 from thread import start_new_thread, allocate_lock
@@ -460,25 +458,8 @@ def read_line(f, timeout, timeout_func):
 		return ''
 
 
-def enable_echo(fd, enabled):
-	(iflag, oflag, cflag, lflag, ispeed, ospeed, cc) = termios.tcgetattr(fd)
-	if enabled:
-		lflag |= termios.ECHO
-	else:
-		lflag &= ~termios.ECHO
-	new_attr = [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]
-	termios.tcsetattr(fd, termios.TCSANOW, new_attr)
-
-
 def main():
-	debugging = bool(os.environ.get('BARCODE_PLUGIN_DEBUG', False))
-
 	colorama.init()
-
-	if not debugging:
-		atexit.register(enable_echo, sys.stdin.fileno(), True)
-		enable_echo(sys.stdin.fileno(), False)
-
 	status = Status()
 	global scroll_line1,scroll_line2
 	global myDisplay
@@ -492,7 +473,6 @@ def main():
 	while True:
 		clear()
 		status.dump()
-		if debugging:
 		print_prompt()
 		line = read_line(sys.stdin, timeout=3*60.0, timeout_func=status.logout)
 		if line: