Meson

nixd/librpc: remove BCID #2346

Job	Run time
nix-build-develop-clang (none, release, true)	1m 53s
nix-build-develop-gcc (none, release, true)	1m 46s
nix-build-develop-clang (none, release, false)	1m 49s
nix-build-develop-gcc (none, release, false)	1m 47s
nix-build-develop-clang (none, debug, true)	1m 42s
nix-build-develop-gcc (none, debug, true)	1m 40s
nix-build-develop-clang (none, debug, false)	1m 45s
nix-build-develop-gcc (none, debug, false)	1m 43s
nix-build-develop-gcc (undefined, release, true)	2m 29s
nix-build-develop-gcc (undefined, release, false)	2m 20s
nix-build-develop-gcc (undefined, debug, true)	1m 53s
nix-build-develop-gcc (undefined, debug, false)	2m 26s
	23m 13s

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