clang-tidy: fix `readability-redundant-inline-specifier` lints

Accelerators/Vtkm/Core/vtkmlib/PortalTraits.h

Common/Core/SMP/Sequential/vtkSMPThreadLocalImpl.h

Common/Core/vtkAbstractArray.h

Common/Core/vtkBuffer.h

Common/Core/vtkByteSwap.cxx

Common/Core/vtkGenericDataArray.h

Common/Core/vtkImplicitArray.h

Common/Core/vtkInherits.h

Common/Core/vtkSOADataArrayTemplate.h

Common/Core/vtkStringToken.h

Common/Core/vtkTypeName.h

Common/DataModel/vtkCellGridRangeQuery.h

Common/DataModel/vtkCellTreeLocator.cxx

Common/DataModel/vtkExplicitStructuredGrid.h

Common/DataModel/vtkInEdgeIterator.h

Common/DataModel/vtkOutEdgeIterator.h

Common/DataModel/vtkReebGraph.cxx

Common/DataModel/vtkSelection.cxx

Common/DataModel/vtkStaticPointLocator.cxx

Common/Misc/vtkExprTkFunctionParser.cxx