ENH: removed OTB_DATA_USE_SPOT/CNESINPUT variables

CMake/OTBManageLargeInputPaths.cmake

CMakeLists.txt

Modules/Adapters/OSSIMAdapters/test/CMakeLists.txt

Modules/Core/ImageBase/test/CMakeLists.txt

Modules/IO/IOJPEG2000/test/CMakeLists.txt

Modules/IO/ImageIO/test/CMakeLists.txt