Remove non macOS compatible things #71

Job	Run time
build-and-test (native, macos-13)	37s
build-and-test (llvm, macos-15)	32s
build-and-test (gcc, windows-latest)	2m 5s
build-and-test (llvm, macos-13)	1m 9s
build-and-test (native, macos-15)	18s
build-and-test (native, ubuntu-latest)	52s
build-and-test (gcc, macos-13)	1m 25s
build-and-test (llvm, ubuntu-latest)	51s
build-and-test (gcc, macos-15)	45s
build-and-test (native, windows-latest)	2m 17s
Publish Tests Results	13s
	11m 4s

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