Remove deprecated methods from NWBFile #1636

Job	Run time
conda-linux-gallery-python3.13-ros3	1m 22s
linux-gallery-python3.9-minimum	2m 17s
conda-linux-python3.13-ros3	1m 34s
linux-python3.9-minimum	7m 23s
linux-gallery-python3.13-upgraded	4m 30s
linux-python3.13-upgraded	6m 0s
windows-gallery-python3.9-minimum	2m 49s
conda-linux-python3.9-minimum	6m 50s
windows-python3.9-minimum	7m 38s
windows-gallery-python3.13-upgraded	9m 24s
windows-python3.13-upgraded	7m 37s
conda-linux-python3.13-upgraded	5m 23s
macos-python3.9-minimum	9m 6s
macos-python3.13-upgraded	3m 26s
Deploy pre-release from dev	0s
	1h 15m 19s

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