Reversion of commits v4.4.2..v4.5.0 #264

Job	Run time
test (1.6, ubuntu-latest, x86, 1)	8m 52s
test (1.6, ubuntu-latest, x64, 1)	5m 48s
test (1.6, macOS-latest, x64, 1)	7m 35s
test (1.6, windows-latest, x64, 1)	18m 35s
test (1, ubuntu-latest, x86, 1)	12m 17s
test (1, ubuntu-latest, x86, 2)	14m 32s
test (1, ubuntu-latest, x64, 1)	4m 38s
test (1, ubuntu-latest, x64, 2)	4m 28s
test (1, macOS-latest, x64, 1)	8m 28s
test (1, macOS-latest, x64, 2)	8m 27s
test (1, windows-latest, x64, 1)	6m 48s
test (1, windows-latest, x64, 2)	7m 4s
test (nightly, ubuntu-latest, x86, 1)	6h 0m 14s
test (nightly, ubuntu-latest, x86, 2)	6h 0m 14s
test (nightly, ubuntu-latest, x64, 1)	12m 51s
test (nightly, ubuntu-latest, x64, 2)	11m 28s
test (nightly, macOS-latest, x64, 1)	1h 14m 27s
test (nightly, macOS-latest, x64, 2)	1h 14m 13s
test (nightly, windows-latest, x64, 1)	33m 45s
test (nightly, windows-latest, x64, 2)	37m 28s
	17h 52m 12s

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