Remove the cache for FunctionTableModel #1943

Job	Run time
windows / Test Windows	6m 45s
ci / Build	3m 43s
pyinstaller / Build on ubuntu-20.04	5m 6s
pyinstaller / Build on ubuntu-22.04	4m 46s
pyinstaller / Build on windows-2022	5m 45s
pyinstaller / Build on macos-12	9m 0s
pyinstaller / Build on macos-14	6m 18s
ci / Lint	1m 2s
ci / Test (0)	1m 29s
ci / Test (1)	1m 4s
ci / Test (2)	1m 25s
ci / Test (3)	2m 20s
ci / Test (4)	1m 23s
ci / Test (5)	1m 32s
ci / Test (6)	1m 32s
ci / Test (7)	1m 6s
ci / Test (8)	1m 5s
ci / Test (9)	1m 7s
ci / Publish Unit Tests Results	1s
pyinstaller / Test on windows-2022	51s
pyinstaller / Test on ubuntu-20.04	1m 34s
pyinstaller / Test on macos-12	1m 17s
pyinstaller / Test on ubuntu-22.04	1m 10s
pyinstaller / Test on macos-14	40s
	1h 2m 1s

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