Dashboards: Remove dummy trim dashboard api

[ryantxu]

What is this feature?

This removes the /api/dashboards/trim endpoint -- it currently does not do anything, and does not have a clear path todo anything interesting anytime soon.

This was marked as FeatureStagePublicPreview -- but I think we can just remove it since it never did anything 🤷🏻

Why do we need this feature?

We should reduce the number of unused/unsupported feature toggles.

Who is this feature for?

all grafana developers

[ryantxu]

@papagian / @nikimanoledaki -- any hints on how to update the openapi docs? With an up-to-date enterprise checkout, when I run:

make swagger-clean && make openapi3-gen

There are a LOT of changes that seem unrelated to the this change, mostly looks like:

are there more tools/versions or something that may be off?

[nikimanoledaki]

Hi @ryantxu, a couple of things could cause this:

• Is the branch synced with main?
• Is your local Grafana repo linked with Enterprise but the local Enterprise repo is outdated?

Could you check if either of the above produce the expected changes?

We would also appreciate any feedback for how to improve the UX for developers around this check :)

[ryantxu]

thanks @nikimanoledaki -- branch is up-to-date with main, enterprise is on main and dev.sh was run:

Then following the directions from the failure:

...

and the final result:

maybe something cached somewhere? maybe different versions of tools?