unused variable warning fixed
unused variable warning fixed

fmilano/mitk,MITK/MITK,MITK/MITK,fmilano/mitk,MITK/MITK,MITK/MITK,fmilano/mitk,MITK/MITK,MITK/MITK,fmilano/mitk,fmilano/mitk,fmilano/mitk,fmilano/mitk