remove unused codes in se_a.py #4311

Job	Run time
Build source distribution	19s
determine-arm64-runner	1s
Build wheels for cp311-manylinux_x86_64	5m 7s
Build wheels for cp311-manylinux_x86_64	5m 15s
Build wheels for cp311-macosx_x86_64	6m 23s
Build wheels for cp311-macosx_arm64	4m 39s
Build wheels for cp311-win_amd64	7m 24s
Build wheels for cp310-manylinux_aarch64	4m 29s
build_pypi_index	7s
build_docker (12)	2m 36s
build_docker (_cu11, 11)	3m 24s
upload_pypi	0s
deploy_pypi_index	0s
Pass testing build wheels	2s
	39m 46s

Provide feedback