vtkTestingMacros: Revert temporary data transform changes
vtkTestingMacros: Revert temporary data transform changes

Revert the parent and grandparent changes to vtk_add_test_* since they
were only for temporary use locally.

Change-Id: I9df6fd28f56717d560e26eb4705eb9c8c6413ca0

jmerkow/VTK,ashray/VTK-EVM,sumedhasingla/VTK,msmolens/VTK,keithroe/vtkoptix,mspark93/VTK,mspark93/VTK,sumedhasingla/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,SimVascular/VTK,msmolens/VTK,johnkit/vtk-dev,msmolens/VTK,demarle/VTK,sumedhasingla/VTK,biddisco/VTK,sankhesh/VTK,candy7393/VTK,ashray/VTK-EVM,hendradarwin/VTK,johnkit/vtk-dev,mspark93/VTK,ashray/VTK-EVM,SimVascular/VTK,collects/VTK,SimVascular/VTK,msmolens/VTK,berendkleinhaneveld/VTK,gram526/VTK,collects/VTK,keithroe/vtkoptix,ashray/VTK-EVM,ashray/VTK-EVM,mspark93/VTK,SimVascular/VTK,sankhesh/VTK,biddisco/VTK,jmerkow/VTK,collects/VTK,candy7393/VTK,hendradarwin/VTK,keithroe/vtkoptix,msmolens/VTK,mspark93/VTK,biddisco/VTK,hendradarwin/VTK,demarle/VTK,mspark93/VTK,mspark93/VTK,collects/VTK,berendkleinhaneveld/VTK,biddisco/VTK,mspark93/VTK,candy7393/VTK,jmerkow/VTK,jmerkow/VTK,johnkit/vtk-dev,sumedhasingla/VTK,gram526/VTK,demarle/VTK,collects/VTK,jmerkow/VTK,ashray/VTK-EVM,biddisco/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,gram526/VTK,SimVascular/VTK,keithroe/vtkoptix,demarle/VTK,hendradarwin/VTK,biddisco/VTK,ashray/VTK-EVM,candy7393/VTK,sumedhasingla/VTK,keithroe/vtkoptix,candy7393/VTK,sumedhasingla/VTK,demarle/VTK,sankhesh/VTK,gram526/VTK,sankhesh/VTK,biddisco/VTK,sumedhasingla/VTK,msmolens/VTK,demarle/VTK,SimVascular/VTK,candy7393/VTK,collects/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,sumedhasingla/VTK,demarle/VTK,candy7393/VTK,msmolens/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,johnkit/vtk-dev,jmerkow/VTK,jmerkow/VTK,keithroe/vtkoptix,sankhesh/VTK,sankhesh/VTK,jmerkow/VTK,hendradarwin/VTK,gram526/VTK,candy7393/VTK,hendradarwin/VTK,hendradarwin/VTK,johnkit/vtk-dev,gram526/VTK,demarle/VTK,berendkleinhaneveld/VTK,gram526/VTK,keithroe/vtkoptix,gram526/VTK,keithroe/vtkoptix,SimVascular/VTK,johnkit/vtk-dev,johnkit/vtk-dev,msmolens/VTK