Remove links to YouTube devlogs

[tetrapod00]

I'm not sure about this, and it needs full consensus from the docs team.

In #10023, we removed a curated list of YouTube tutorials. However, we left two links to YouTube devlogs:

• https://www.youtube.com/@bitbraindev/videos
• https://www.youtube.com/@devduck/videos

I suggest removing those, since it seems a bit strange to leave an exception on the page specifically for devlogs. Was there a specific reason to do so? With devlog links we still have the same problem of needing a foundation review for new additions.

Additionally, one of the two currently linked devlogs includes a mix of short tutorials and devlog content. If we leave devlogs on the page, it may function as a loophole to get a specific channel linked from the official docs. (To be clear I don't mean to single out a specific creator here, but it's hard when the page only links two of them.)

[mhilbrunner]

Approving, although I guess we are starting to reach the point where we should be re-considering the whole page. :') Starting to be pretty bare bones.

It may make sense to change it to focus mostly on the resources?

[tetrapod00]

There was a bit of prior discussion of reconsidering the whole page in the RC a few months back (https://chat.godotengine.org/channel/documentation?msg=D5bBD6pJW7p4dqDaT)

I'm okay with holding off on this particular change in favor of a dedicated discussion about the future purpose of this page. We should figure out what our actual policy is for linking to stuff rather than changing it ad-hoc in bits and pieces, I think.

Note that if we focus more on just linking to resources, one of the major resources linked to is https://github.com/godotengine/awesome-godot. But the section of that readme file about tutorials just links back to the docs page. So that's something we would want to untangle.

[skyace65]

Honestly I just didn't see the devlogs when I made my PR that removed the youtube links. I'm fine with removing these as well.