remove qisys/external
remove qisys/external

Used to contain a copy of argparse

Change-Id: Ie5824db0dcb781e91b63afd22627d1cecc7cb523
Reviewed-on: http://gerrit.aldebaran.lan/60341
Tested-by: gerrit
Reviewed-by: dmerejkowsky <1e4b13000fa8777df4cefd2fd8215187e3deb062@aldebaran-robotics.com>

aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild,aldebaran/qibuild