remove useless semicolons in Python code

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extra : rebase_source : cf2a0d87f2f903179cc954ff092c79fef7b13a34
it should be enough to restart tracking the object at the end of tp_dealloc() only if there really is a base type that might rely on it

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extra : rebase_source : 8a20a41f35f9b5d1aaa2a916b52403bd0cb145fc