python samba.compat reduction 2
These remove more lines from samba.compat, and will make it harder to backport Python code to 4.10. But only a little.
Checklist
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Commits have Signed-off-by:with name/author being identical to the commit author
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(optional) This MR is just one part towards a larger feature. 
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(optional, if backport required) Bugzilla bug filed and BUG:tag added
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Test suite updated with functionality tests 
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Test suite updated with negative tests 
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Documentation updated 
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CI timeout is 3h or higher (see Settings/CICD/General pipelines/ Timeout) 
Reviewer's checklist:
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There is a test suite reasonably covering new functionality or modifications 
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Function naming, parameters, return values, types, etc., are consistent and according to README.Coding.md
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This feature/change has adequate documentation added 
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No obvious mistakes in the code