python: silence warnings about round redefinition
python: silence warnings about round redefinition

New MSVC has it while Python binaries are built with MSVC 2008.

jmerkow/VTK,mspark93/VTK,keithroe/vtkoptix,SimVascular/VTK,sumedhasingla/VTK,jmerkow/VTK,candy7393/VTK,gram526/VTK,sankhesh/VTK,candy7393/VTK,keithroe/vtkoptix,demarle/VTK,gram526/VTK,sankhesh/VTK,sumedhasingla/VTK,SimVascular/VTK,candy7393/VTK,SimVascular/VTK,sumedhasingla/VTK,sumedhasingla/VTK,msmolens/VTK,candy7393/VTK,demarle/VTK,mspark93/VTK,gram526/VTK,jmerkow/VTK,mspark93/VTK,jmerkow/VTK,keithroe/vtkoptix,candy7393/VTK,SimVascular/VTK,demarle/VTK,sankhesh/VTK,sumedhasingla/VTK,SimVascular/VTK,msmolens/VTK,gram526/VTK,gram526/VTK,sankhesh/VTK,gram526/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,mspark93/VTK,msmolens/VTK,demarle/VTK,keithroe/vtkoptix,keithroe/vtkoptix,msmolens/VTK,sumedhasingla/VTK,demarle/VTK,SimVascular/VTK,keithroe/vtkoptix,sumedhasingla/VTK,SimVascular/VTK,sankhesh/VTK,mspark93/VTK,jmerkow/VTK,demarle/VTK,sankhesh/VTK,sumedhasingla/VTK,jmerkow/VTK,msmolens/VTK,jmerkow/VTK,candy7393/VTK,mspark93/VTK,sankhesh/VTK,SimVascular/VTK,demarle/VTK,candy7393/VTK,msmolens/VTK,msmolens/VTK,mspark93/VTK,jmerkow/VTK,keithroe/vtkoptix,keithroe/vtkoptix,sankhesh/VTK,msmolens/VTK,gram526/VTK,gram526/VTK