We don't use TAGS, AWK or ECHO anywhere in the code (at least according
to git grep). Let's remove this.

Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>