vtkSLCReader: plug memory leak
vtkSLCReader: plug memory leak

Change-Id: I94a508d159219f833d6363ae1c9078c94aa06c47

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