Simplify examples #1265

Job	Run time
python-lint	5s
clang-format	8s
windows-msvc-build	4m 24s
ubuntu-gcc-build	4m 5s
macos-clang-build	4m 11s
ubuntu-clang-build	4m 16s
windows-clang-build	4m 25s
ubuntu-gcc-build-extended	1s
macos-clang-build-extended	1s
ubuntu-clang-build-extended	1s
ubuntu-clang-sanitizer-build	1s
ubuntu-gcc-build-codecov	1s
ubuntu-clang-sanitizer-build-extended	1s
windows-clang-build-extended	1s
windows-msvc-build-extended	1s
ubuntu-gcc-build-perf-stats	1s
	21m 43s

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