Fix pylint warnings (#41222)
* Remove unused variables
Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
* Remove reimported packages
Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
* Fix code
Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
* Fix pylint warnings
Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
* Simplify
Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
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Signed-off-by: Yuanyuan Chen <cyyever@outlook.com>
