Reverted all changes in v4.5.0 #261

Job	Run time
test (1.6, ubuntu-latest, x86, 1)	10m 45s
test (1.6, ubuntu-latest, x64, 1)	4m 36s
test (1.6, macOS-latest, x64, 1)	10m 23s
test (1.6, windows-latest, x64, 1)	14m 15s
test (1, ubuntu-latest, x86, 1)	13m 1s
test (1, ubuntu-latest, x86, 2)	12m 57s
test (1, ubuntu-latest, x64, 1)	5m 49s
test (1, ubuntu-latest, x64, 2)	5m 6s
test (1, macOS-latest, x64, 1)	9m 16s
test (1, macOS-latest, x64, 2)	7m 40s
test (1, windows-latest, x64, 1)	7m 8s
test (1, windows-latest, x64, 2)	9m 53s
test (nightly, ubuntu-latest, x86, 1)	6h 0m 14s
test (nightly, ubuntu-latest, x86, 2)	6h 0m 15s
test (nightly, ubuntu-latest, x64, 1)	13m 24s
test (nightly, ubuntu-latest, x64, 2)	12m 10s
test (nightly, macOS-latest, x64, 1)	1h 14m 18s
test (nightly, macOS-latest, x64, 2)	3h 46m 56s
test (nightly, windows-latest, x64, 1)	29m 4s
test (nightly, windows-latest, x64, 2)	25m 19s
	20h 12m 29s

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