Surface LIC: fix unused variable warning on Linux
Surface LIC: fix unused variable warning on Linux

Change-Id: If3036e79d147705353403468f0e832751c3c0a0c

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