Remove non-standard SIZEOF from GPU subtree #682

Job	Run time
ci (Release, linux gnu-10)	5m 42s
ci (Release, linux gnu-10)	5m 42s
ci (Release, linux clang-12)	4m 22s
ci (Release, linux clang-12)	4m 22s
ci (Release, linux nvhpc-21.9)	13m 54s
ci (Release, linux nvhpc-21.9)	13m 54s
ci (Release, linux intel-classic)	7m 44s
ci (Release, linux intel-classic)	7m 44s
ci (Release, macos)	1m 30s
ci (Release, macos)	8m 18s
ci (Debug, linux gnu-10)	9m 6s
ci (Debug, linux gnu-10)	9m 6s
ci (Debug, linux clang-12)	5m 31s
ci (Debug, linux clang-12)	5m 31s
ci (Debug, linux nvhpc-21.9)	21m 51s
ci (Debug, linux nvhpc-21.9)	21m 51s
ci (Debug, linux intel-classic)	11m 12s
ci (Debug, linux intel-classic)	11m 12s
ci (Debug, macos)	1m 7s
ci (Debug, macos)	8m 7s
	2h 57m 46s

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