Build

python: remove redundant null check #4329

Job	Run time
fallback shared libraries	1m 34s
make static	50s
libnvme (debian, gcc, release)	54s
musl libc build on Debian	32s
cross (s390x)	40s
cross (ppc64le)	46s
muon minimal static	32s
windows-msys2-ucrt64	1m 26s
cross (armhf)	54s
build libnvme and nvme-cli separately	41s
musl libc minimal static build on Debian	28s
musl libc build on Alpine	41s
nvme-cli (debian, clang, release)	57s
nvme-cli (debian, gcc, debug)	50s
nvme-cli (fedora, gcc, debug)	48s
nvme-cli (fedora, gcc, release)	59s
nvme-cli (debian, gcc, release)	58s
nvme-cli (tumbleweed, clang, release)	58s
nvme-cli (tumbleweed, gcc, debug)	48s
nvme-cli (tumbleweed, gcc, release)	1m 15s
nvme-cli (debian, clang, debug)	56s
nvme-cli (tumbleweed, clang, debug)	47s
nvme-cli (fedora, clang, debug)	46s
nvme-cli (fedora, clang, release)	50s
	20m 50s

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