[android] Remove unused preference value

Signed-off-by: Jean-Baptiste <jeanbaptiste.charron@outlook.fr>

libs/tracking/reporter.hpp

@@ -25,6 +25,7 @@
 #pragma clang diagnostic pop
 #endif
 
+//Currently unused but may come in handy if we implement traffic reporting from the app one day, leaving it here for now
 namespace location
 {
 class GpsInfo;