Revert "COMP fixed wrong declaration of rendering testhelper"
Revert "COMP fixed wrong declaration of rendering testhelper"

This reverts commit df7462aaeef929a1cf2bd74838ade853c253e258.

rfloca/MITK,iwegner/MITK,lsanzdiaz/MITK-BiiG,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,NifTK/MITK,nocnokneo/MITK,nocnokneo/MITK,MITK/MITK,iwegner/MITK,lsanzdiaz/MITK-BiiG,rfloca/MITK,MITK/MITK,NifTK/MITK,danielknorr/MITK,lsanzdiaz/MITK-BiiG,NifTK/MITK,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,NifTK/MITK,MITK/MITK,fmilano/mitk,nocnokneo/MITK,nocnokneo/MITK,MITK/MITK,fmilano/mitk,RabadanLab/MITKats,fmilano/mitk,danielknorr/MITK,RabadanLab/MITKats,lsanzdiaz/MITK-BiiG,nocnokneo/MITK,danielknorr/MITK,NifTK/MITK,fmilano/mitk,fmilano/mitk,iwegner/MITK,fmilano/mitk,danielknorr/MITK,danielknorr/MITK,lsanzdiaz/MITK-BiiG,RabadanLab/MITKats,RabadanLab/MITKats,rfloca/MITK,rfloca/MITK,iwegner/MITK,rfloca/MITK,fmilano/mitk,MITK/MITK,lsanzdiaz/MITK-BiiG,iwegner/MITK,rfloca/MITK,iwegner/MITK,NifTK/MITK,nocnokneo/MITK,nocnokneo/MITK,MITK/MITK,danielknorr/MITK,rfloca/MITK,danielknorr/MITK