ObjectHost: Fix a nasty double-delete.
ObjectHost: Fix a nasty double-delete.

Change-Id: I217a91ee8b6e1f1d9305623d9d2d0cc90e729c34
Reviewed-on: http://gerrit.aldebaran.lan/23778
Reviewed-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>
Tested-by: mnottale <e3ccf1b6558404e921a21fa09cebb1153b50ec36@aldebaran-robotics.com>

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