Simplify examples (#236) #1282

Job	Run time
clang-format	6s
python-lint	4s
ubuntu-gcc-build	27m 34s
macos-clang-build	26m 11s
windows-clang-build	26m 31s
ubuntu-clang-build	32m 9s
windows-msvc-build	24m 59s
windows-msvc-build-extended	41m 49s
macos-clang-build-extended	18m 10s
windows-clang-build-extended	39m 31s
ubuntu-gcc-build-extended	18m 27s
ubuntu-clang-build-extended	19m 58s
ubuntu-clang-sanitizer-build	14m 0s
ubuntu-clang-sanitizer-build-extended	16m 51s
ubuntu-gcc-build-codecov	19m 7s
ubuntu-gcc-build-perf-stats	5m 44s
	5h 31m 11s

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