build

Remove superfluous extra element of numll #249

Job	Run time
ci (Release, linux gnu-10)	7m 14s
ci (Release, linux clang-12)	6m 18s
ci (Release, linux nvhpc-21.9)	14m 10s
ci (Release, linux intel-classic)	10m 19s
ci (Release, macos)	34m 20s
ci (Debug, linux gnu-10)	8m 18s
ci (Debug, linux clang-12)	6m 22s
ci (Debug, linux nvhpc-21.9)	17m 5s
ci (Debug, linux intel-classic)	11m 29s
ci (Debug, macos)	37m 47s
	2h 33m 22s

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