Some code cleanup #1235

Job	Run time
Build stdlib from source (gcc, make)	16s
wasm-clang-make	17s
ubuntu-22.04-clang-make	15s
Build stdlib from source (gcc, bmake)	17s
build-macos-14	10s
ubuntu-22.04-gcc-make	8s
build-macos-13	15s
ubuntu-20.04-clang-make	23s
windows-2019-mingw64	1m 14s
Clang - static analysis	32s
build-macos-12	16s
ubuntu-20.04-gcc-make	8s
windows-2019-mingw32	1m 11s
build-macos-11	19s
ubuntu-22.04-gcc-bmake	14s
windows-2019-ucrt64	1m 11s
Valgrind - memory leak check	25s
windows-2019-clang64	1m 20s
windows-2019-clang32	1m 16s
windows-2022-mingw64	1m 16s
windows-2022-mingw32	1m 20s
windows-2022-ucrt64	1m 17s
windows-2022-clang64	1m 21s
windows-2022-clang32	1m 24s
Static checks	0s
${{ matrix.buildtype }}-macos	0s
release.wasm	0s
${{ matrix.buildtype }}-linux	0s
release-${{ matrix.sys }}-windows	0s
	16m 45s

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