replace remove and remove_directory with rm in tests

Modules/CMakeAddFortranSubdirectory.cmake

Modules/ExternalProject.cmake

Modules/FindCUDA.cmake

Modules/FindCUDA/run_nvcc.cmake

Modules/Platform/Generic-SDCC-C.cmake

Modules/Platform/Windows-GNU.cmake

Source/cmLocalUnixMakefileGenerator3.cxx

Source/cmNinjaNormalTargetGenerator.cxx

Tests/CMakeTestMultipleConfigures/RunCMake.cmake

Tests/CPackComponentsDEB/CMakeLists.txt

Tests/Complex/CMakeLists.txt

Tests/Complex/Library/CMakeLists.txt

Tests/ComplexOneConfig/CMakeLists.txt

Tests/ComplexOneConfig/Library/CMakeLists.txt

Tests/CustomCommand/CMakeLists.txt

Tests/ExportImport/CMakeLists.txt

Tests/FortranOnly/CMakeLists.txt

Tests/JavaExportImport/CMakeLists.txt

Tests/LinkDirectory/CMakeLists.txt

Tests/MacRuntimePath/CMakeLists.txt