Napari: Remove buggy interpolation modes

[royerloic]

🐛 Bug

Some of Vispy interpolation modes for images are very buggy and lead to unsightly
visual artefacts such as black or white vertical lines.
Here is a list of buggy interpolation modes:

• quadric (white lines, sometimes fails entirely)
• sinc (black lines)

We should remove any buggy interpolation scheme,
we are more interpolation than is healthy to have.

To Reproduce

Steps to reproduce the behavior:

1. run 'add_images.py'
2. change interpolation schemes and check eac one.

For quadric, the white lines are faint but there:

Expected behavior

no weird lines.

Environment

• napari-gui Version (e.g., 1.0): master
• OS (e.g., Linux): OSX
• Python version: 3.7
• Any other relevant information: None

Additional context

None

[sofroniewn]

Yup, removing sounds good. I think @kne42 or @jni might have added them originally, maybe assign to them?

[jni]

@kne42 added them at my grumpy request. =P Though I only really wanted nearest neighbor :joy: And I guess @kne42 was like, you want more interpolation modes, here's a whole friggin pile of them! =P

[royerloic]

Actually, I think I had removed it already in the first version of napari... I should be the one to be grumpy here ;-)