[BUG] Not able to delete custom models in cellpose

[MerwanR]

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Describe the bug

I selected the models I want to delete, then I clicked on "Models" "Remove selcted custom model from GUI". The model then disappears, but when I start cellpose again, it is still there.

To Reproduce

Steps to reproduce the behavior:

1. Select custom model
2. Go to 'Models'
3. Click on 'Remove selcted custom model from GUI'
4. Close cellpose
5. Start cellpose again
6. See the "deleted" custom model again