Remove warning filters that are no longer needed for testing #7537

Job	Run time
Code style checks	23s
Code style checks	23s
PEP 517	33s
PEP 517	33s
Security audit	30s
Security audit	30s
Python 3.11 with coverage checking, all deps, and remote data	19m 57s
Python 3.11 with coverage checking, all deps, and remote data	19m 57s
OS X - Python 3.9	9m 0s
OS X - Python 3.9	9m 0s
Windows - Python 3.10	16m 13s
Windows - Python 3.10	16m 13s
Python 3.12 with latest dev versions of key dependencies, and remote data	24m 30s
Python 3.12 with latest dev versions of key dependencies, and remote data	32m 56s
	2h 30m 38s

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