Remove destructor #59

Job	Run time
build-20_04	1h 12m 54s
build-deb_stable	1h 12m 59s
build-deb_oldoldstable	1h 12m 56s
build-deb_stable-w-clang-llvm-org (0)	1h 7m 33s
build-deb_stable-w-clang-llvm-org_nightly	0s
build-deb_stable-w-clang-llvm-org (15)	1h 5m 42s
build-deb_unstable	1h 13m 48s
build-windows	34m 5s
build-deb_stable-w-clang-llvm-org (17)	1h 5m 38s
build-windows-artifacts	0s
	8h 45m 35s

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