yocto: remove invalid versioned DEPENDS example

[dawuald]

I'm not entirely sure about that, but I believe that the version constraints are not supported for DEPENDS since they are applied at the package management level rather than for build-time dependencies.

Therefore - remove invalid example from the slides.

I tried adding a dummy dependency with DEPENDS += "<pkg> (= <invalid version>)" and the recipe built fine, with the <invalid version> appearantly being ignored

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[dawuald]

I have read the CLA Document and I hereby sign the CLA.

[antznin]

Hello @dawuald, thanks for your contribution!

From what I've seen you seem to be right.
The syntax is supported (there are some instances in meta-openembedded that use it), but I don't think it matters indeed because those are parsed with explode_deps() here and this functions ignores the version information stored in this variable. I didn't find other instances of DEPENDS version information being read and used.

I have also verified DEPENDing on some recipe with a version that isn't provided, and I was still able to build it.

So LGTM.