REFAC: remove code using Edison meanshift

Modules/Applications/AppSegmentation/app/otbSegmentation.cxx

Modules/Applications/AppSegmentation/otb-module.cmake

Modules/Applications/AppSegmentation/test/CMakeLists.txt

...ring/Smoothing/include/otbMeanShiftSmoothingImageFilter.h

Modules/Segmentation/OGRProcessing/otb-module.cmake

Modules/Segmentation/OGRProcessing/test/CMakeLists.txt

...ntation/OGRProcessing/test/otbOGRProcessingTestDriver.cxx

...ng/test/otbStreamingImageToOGRLayerSegmentationFilter.cxx