maint: remove eo3 #219 #1179

Job	Run time
build-wheels	14s
build-binder-env	14s
build-test-env-base	1m 10s
build-notebooks	4s
run-pylint	38s
run-black-check	10s
run-mypy	44s
test-with-botocore-and-coverage	25s
test-wheels	22s
check-docs	30s
	4m 31s

Provide feedback