WIP: feat(frontend, backend): Delete python visualization server

[gregsheremeta]

Description of your changes:
The python visualization server was deprecated in 2020. Delete it.

Fixes: #11133

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[google-oss-prow]

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[gregsheremeta]

@chensun I'd like to get your preliminary thoughts on this. Thanks!

[juliusvonkohout]

Yes please, together with the python 3.7 removal this is open for several years now.

[chensun]

@chensun I'd like to get your preliminary thoughts on this. Thanks!

SGTM to delete visualization server.

[HumairAK]

@gregsheremeta can you rebase?

[juliusvonkohout]

@gregsheremeta can you rebase?

+1 i would really like to have this in Kubeflow 1.10

[juliusvonkohout]

@gregsheremeta did you create a new PR?

[juliusvonkohout]

@HumairAK @rimolive @hbelmiro is that covered in another PR now?

[juliusvonkohout]

/reopen

we need to get this merged. I talked to @gregsheremeta and he wont continue here, so i might fork it.

[google-oss-prow]

@juliusvonkohout: Failed to re-open PR: state cannot be changed. The repository that submitted this pull request has been deleted.

In response to this:

/reopen

we need to get this merged. I talked to @gregsheremeta and he wont continue here, so i might fork it.

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[gregsheremeta]

accidentally closed this by deleting my fork -- sorry! (I'm not longer working on Kubeflow.) If anyone wants to pick this up,
https://patch-diff.githubusercontent.com/raw/kubeflow/pipelines/pull/11134.patch