Remove unused imports #1140

Job	Run time
Code formatting (Black)	23s
pytest (py3.8/linux)	9m 7s
pylint (py3.8)	2m 45s
Check Spelling	13s
pytest (py3.8/win64)	16m 50s
Build docs	1m 37s
pylint (py3.9)	3m 2s
pytest (py3.8/macos-x86_64)	17m 57s
pylint (py3.10)	2m 37s
pytest (py3.8/macos)	7m 50s
pylint (py3.11)	3m 12s
pytest (py3.9/linux)	8m 42s
pylint (py3.12)	2m 55s
pytest (py3.9/win64)	19m 9s
pytest (py3.9/macos-x86_64)	15m 33s
pytest (py3.9/macos)	10m 12s
pytest (py3.10/linux)	12m 56s
pytest (py3.10/win64)	34m 16s
pytest (py3.10/macos-x86_64)	20m 21s
pytest (py3.10/macos)	9m 46s
pytest (py3.11/linux)	10m 16s
pytest (py3.11/win64)	29m 31s
pytest (py3.11/macos-x86_64)	20m 22s
pytest (py3.11/macos)	9m 49s
pytest (py3.12/linux)	8m 38s
pytest (py3.12/win64)	16m 24s
pytest (py3.12/macos-x86_64)	14m 18s
pytest (py3.12/macos)	8m 21s
Upload coverage report (Codecov)	18s
	5h 17m 20s

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