Remove unused root property from ConfigurationOption #1193

Job	Run time
Run tests with different pydantic versions	3m 42s
Run tests on legacy versions (3.7)	2m 9s
Run tests with coverage	3m 0s
Run tests (3.11)	2m 2s
Run tests (3.10)	2m 0s
Run tests (3.13)	2m 3s
Run tests (3.9)	2m 0s
Run tests (3.8)	2m 13s
Run linters (mypy)	1m 47s
Run tests (3.12)	2m 7s
Run linters (flake8)	1m 45s
Run linters (pydocstyle)	1m 46s
Run linters (pylint)	1m 49s
Run tests with coverage	3m 5s
Run tests on legacy versions (3.7)	2m 9s
Run tests (3.8)	2m 13s
Run tests (3.13)	2m 3s
Run linters (mypy)	1m 47s
Run tests (3.10)	2m 0s
Run tests with different pydantic versions	3m 42s
Run linters (pylint)	1m 49s
Run tests (3.9)	2m 0s
Run linters (pydocstyle)	1m 46s
Run linters (flake8)	1m 45s
Run tests (3.12)	2m 7s
Run tests (3.11)	2m 2s
	56m 51s

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