python: remove unused parameter name
python: remove unused parameter name

Change-Id: I2fc26de843ed315d26d1dabafbba173baf535d2a
Reviewed-on: http://gerrit.aldebaran.lan/25015
Reviewed-by: hcuche <2a0975cc082cedff4d4350e3f6ec187146151bc6@aldebaran-robotics.com>
Tested-by: ncornu <13ba26b8f12d26c819f48749c65f2f7f5c1d13db@aldebaran-robotics.com>
Reviewed-on: http://gerrit.aldebaran.lan/25105
Reviewed-by: ncornu <13ba26b8f12d26c819f48749c65f2f7f5c1d13db@aldebaran-robotics.com>

bsautron/libqi,aldebaran/libqi,vbarbaresi/libqi,aldebaran/libqi,aldebaran/libqi