remove old categorize #30

Job	Run time
lint (3.7)	12s
test (ubuntu-latest, 3.7)	2m 18s
test (ubuntu-latest, 3.8)	2m 12s
test (ubuntu-latest, 3.9)	2m 11s
test (ubuntu-latest, 3.10)	2m 8s
test (ubuntu-latest, 3.11)	2m 3s
test (ubuntu-latest, 3.12)	2m 22s
test (macos-latest, 3.7)	2m 22s
test (macos-latest, 3.8)	2m 21s
test (macos-latest, 3.9)	1s
test (macos-latest, 3.10)	2m 23s
test (macos-latest, 3.11)	2m 14s
test (macos-latest, 3.12)	2m 16s
test (windows-latest, 3.7)	2m 12s
test (windows-latest, 3.8)	2m 11s
test (windows-latest, 3.9)	2m 9s
test (windows-latest, 3.10)	2m 10s
test (windows-latest, 3.11)	2m 10s
test (windows-latest, 3.12)	2m 9s
test (-r requirements-min.txt, 3.7, ubuntu-latest)	2m 21s
Finish Coveralls	0s
	40m 25s

Provide feedback