Remove consecutive platform defines #364

Job	Run time
chromium	3m 25s
build_and_test (Debug, ubuntu-20.04)	1m 21s
generate_source	20s
build_and_test (Debug, ubuntu-22.04)	1m 7s
android (armeabi-v7a)	1m 6s
reuse	13s
build_and_test (Debug, windows-latest)	2m 45s
android (arm64-v8a)	56s
build_and_test (Debug, macos-latest)	1m 36s
build_and_test (Release, ubuntu-20.04)	1m 46s
build_and_test (Release, ubuntu-22.04)	1m 32s
build_and_test (Release, windows-latest)	3m 17s
build_and_test (Release, macos-latest)	1m 23s
	20m 47s

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