[QoL] Allow conan remove -t *

[Minimonium]

In the CI with the cache, it's needed to reinstall system requirements when the machine has been changed. Currently, it's only supported with a full reference.

[Minimonium]

Consider #4370

[lasote]

I agree. But I would say the command should be conan remove "*" -t

(An internal note for the dev team or any other collaborator that develop this feature:
Calling directly the "cache" from the command.py is not correct and it should have a dedicated function in the conan_api. self._cache.remove_package_system_reqs(ref))

[uilianries]

Should it remove global system requirements, or only from all packages?

[Minimonium]

What tools do we have to remove only global system requirements from conan cli?
I'm not sure it makes sense to remove global system requirements too. Or better to say - applying to this use case it makes sense, but I feel like the usage would be a bit confusing and a little bit unexpected.

[uilianries]

So maybe we could create a new option for global requirements

[lasote]

Anyway, that would be a different feature. Let's keep things clear.