Fix unused variable on outdated example
Fix unused variable on outdated example

Change-Id: I9e257c3123b68044b34531cd71837db9a9ef2bc8

aldebaran/libqi-java,aldebaran/libqi,vbarbaresi/libqi,aldebaran/libqi-java,aldebaran/libqi-java,bsautron/libqi,aldebaran/libqi,aldebaran/libqi