Remove trunc_workspace #937

Job	Run time
macos-build (3.7)	1h 13m 16s
linux-build-aarch64 (ubuntu-20.04, cp37-cp37m)	8m 32s
linux-build (ubuntu-20.04, 3.7)	1h 5m 50s
linux-build-aarch64 (ubuntu-20.04, cp38-cp38)	9m 2s
linux-build (ubuntu-20.04, 3.8)	1h 2m 57s
linux-build (ubuntu-20.04, 3.9)	1h 4m 58s
linux-build-aarch64 (ubuntu-20.04, cp39-cp39)	13m 2s
linux-build (ubuntu-20.04, 3.10)	1h 5m 46s
linux-build (ubuntu-20.04, 3.11)	1h 3m 57s
	7h 7m 20s

Provide feedback