Remove not used constants in smhi #243045

Job	Run time
Collect information & changes data	14s
Prepare dependencies (3.13)	24s
Prepare pre-commit base	12s
Check Dockerfile	11s
Check Dockerfile.dev	14s
Check script/hassfest/docker/Dockerfile	11s
Check other linters	21s
Check ruff-format	22s
Check ruff	18s
Check all requirements	17s
Check hassfest	51s
Check pylint	22s
Audit licenses	0s
Check mypy	2m 47s
Check pylint on tests	22s
Run tests Python 3.13 (smhi)	58s
Split tests for full run	0s
Run ${{ matrix.mariadb-group }} tests Python ${{ matrix.python-version }}	0s
Run ${{ matrix.postgresql-group }} tests Python ${{ matrix.python-version }}	0s
Run tests Python ${{ matrix.python-version }} (${{ matrix.group }})	0s
Upload test coverage to Codecov (full suite)	0s
Upload test coverage to Codecov (partial suite)	15s
	8m 19s

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