Fixed many 'redundantAssignment' cppcheck warnings

CMake/VTKcppcheckSuppressions.txt

Charts/Core/vtkAxis.cxx

Common/DataModel/Testing/Cxx/TestAMRBox.cxx

Common/DataModel/Testing/Cxx/TestDispatchers.cxx

Common/DataModel/Testing/Cxx/TestStaticCellLinks.cxx

Common/DataModel/vtkIncrementalOctreePointLocator.cxx

Common/DataModel/vtkPolygon.cxx

Common/System/vtkTimerLog.cxx

Domains/Chemistry/vtkSimpleBondPerceiver.cxx

Examples/AMR/Cxx/Generate2DAMRDataSetWithPulse.cxx

Examples/AMR/Cxx/Generate3DAMRDataSetWithPulse.cxx

Examples/GUI/Qt/GraphicsView/OpenGLScene.cpp

...ers/Extraction/Testing/Cxx/TestExtractRectilinearGrid.cxx

Filters/Extraction/vtkExtractSelection.cxx

Filters/Extraction/vtkProbeSelectedLocations.cxx

Filters/General/Testing/Cxx/TestQuadraturePoints.cxx

...s/Geometry/Testing/Cxx/TestStructuredGridConnectivity.cxx

...eometry/Testing/Cxx/TestPUnstructuredGridConnectivity.cxx

Filters/ParallelMPI/Testing/Cxx/TestImplicitConnectivity.cxx

Filters/StatisticsGnuR/vtkRInterface.cxx