Remove `_constrain_dt_to_within_time_interval` function (#2754) #2963

Job	Run time
GHA Security Analysis using Zizmor	16s
should run ci	7s
cache-pixi-lock	5s
Validation tests \| pixi run tests-validation	2m 23s
build-and-upload-nightly-parcels	2m 0s
Flaky unit tests: ubuntu \| pixi run -e test tests-flaky	2m 4s
TypeChecking: pixi run typing	1m 52s
Unit tests: ubuntu \| pixi run -e test tests	3m 43s
Unit tests: ubuntu \| pixi run -e test-py311 tests	5m 27s
Unit tests: windows \| pixi run -e test tests	12m 2s
Unit tests: ubuntu \| pixi run -e test-minimum tests	6m 14s
Unit tests: ubuntu \| pixi run -e test-py313 tests	6m 11s
Integration: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests-notebooks	-1s
merge-test-artifacts	-1s
	42m 22s

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