in src/windows/GeolocationProxy.js [189:203]
clearWatch: function (success, fail, args, env) {
const clientId = args[0];
const callback = callbacks[clientId];
const loc = locs[clientId];
if (callback && loc) {
loc.removeEventListener('positionchanged', callback.pos);
loc.removeEventListener('statuschanged', callback.status);
delete callbacks[clientId];
delete locs[clientId];
}
success();
}