Remove PROMPT_COMMAND in .bashrc

The best way is enable in /etc/bash.bashrc

 Commented out, don't overwrite xterm -T "title" -n "icontitle" by
 default.
 If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME}: ${PWD}\007"'
    ;;
*)
    ;;
esac