clang-tidy: fix `readability-duplicate-include` lints

Accelerators/Vtkm/Filters/vtkmHistogram.cxx

Common/Core/Testing/Cxx/TestGenericDataArrayAPI.cxx

Common/DataModel/Testing/Cxx/BezierInterpolation.cxx

Common/DataModel/Testing/Cxx/LagrangeHexahedron.cxx

Common/DataModel/Testing/Cxx/TestPolyhedron2.cxx

Common/DataModel/Testing/Cxx/TestPolyhedron3.cxx

Common/DataModel/Testing/Cxx/quadraticIntersection.cxx

Common/DataModel/vtkHexahedron.cxx

Common/DataModel/vtkPixel.cxx

Common/DataModel/vtkVoxel.cxx

Domains/Chemistry/Testing/Cxx/TestPDBBallAndStick.cxx

...emistryOpenGL2/Testing/Cxx/TestPDBBallAndStickShadows.cxx

...OpenGL2/Testing/Cxx/TestPDBBallAndStickShadowsDOFSSAA.cxx

...tryOpenGL2/Testing/Cxx/TestPDBBallAndStickTranslucent.cxx

Filters/Core/Testing/Cxx/TestProbeFilterOutputAttributes.cxx

Filters/Core/Testing/Cxx/TestResampleToImage.cxx

Filters/Core/vtkCompositeCutter.cxx

Filters/Core/vtkPolyDataNormals.cxx

Filters/FlowPaths/vtkVectorFieldTopology.cxx

Filters/Parallel/vtkExtractCTHPart.cxx