Remove the need to have separate config for authentication.

remoting/host/installer/mac/PrivilegedHelperTools/org.chromium.chromoting.me2me.sh

 #!/bin/sh
 
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Version = @@VERSION@@
 
 NAME=org.chromium.chromoting
 CONFIG_DIR=/Library/PrivilegedHelperTools
@@ skipping 27 matching lines @@
       SIGSTOP SIGTSTP SIGCONT SIGCHLD SIGTTIN SIGTTOU SIGIO SIGXCPU SIGXFSZ \
       SIGVTALRM SIGPROF SIGWINCH SIGINFO SIGUSR1 SIGUSR2
 
   while true; do
     if [[ ! -f "$ENABLED_FILE" ]]; then
       echo "Daemon is disabled."
       exit 0
     fi
 
     # Execute the host asynchronously
-    "$HOST_EXE" --auth-config="$CONFIG_FILE" --host-config="$CONFIG_FILE" &
+    "$HOST_EXE" --host-config="$CONFIG_FILE" &
     HOST_PID="$!"
 
     # Wait for the host to return and process its exit code.
     while true; do
       wait "$HOST_PID"
       EXIT_CODE="$?"
       if [[ $SIGNAL_WAS_TRAPPED -eq 1 ]]; then
         # 'wait' returned as the result of a trapped signal and the exit code is
         # the signal that was trapped + 128. Forward the signal to the host.
         SIGNAL_WAS_TRAPPED=0
@@ skipping 33 matching lines @@
   # Wait for the parent (System Preferences applet) to die, by reading from
   # stdin until the pipe is broken.
   cat 2>/dev/null || true
   open "$PREF_PANE_BUNDLE"
 elif [[ "$1" = "--run-from-launchd" ]]; then
   run_host
 else
   echo $$
   exit 1
 fi