The FindITK module only existed to help find_package(ITK) calls work in old projects written to use "USE_ITK_FILE" instead of "ITK_USE_FILE". Drop it to allow find_package(ITK) calls to search for ITKConfig.cmake directly.
Run the convert-help.bash script to convert documentation: ./convert-help.bash "/path/to/CMake-build/bin" Then remove it.