Don't bundle subscriptions.xml

[fhd]

Background

We're currently bundling the subscriptions.xml file in the ​adblockplusui repository, mainly because we're not yet sure if and how we need to change its format to have all the relevant meta data about recommended subscriptions.

What to change

We shouldn't bundle subscriptions.xml in the adblockplusui repository - the host repository is already bundling it, we can access it from there. We still need a dummy file for the test environment, however.

We should mention this requirement in the README.

[fhd]

This was filed as a defect deliberately. Discussed it with Philip beforehand: If we don't know _what_ to do about it, just that there's a problem, it should be a defect, not a change.

[greiner]

Replying to fhd:

This was filed as a defect deliberately. Discussed it with Philip beforehand: If we don't know _what_ to do about it, just that there's a problem, it should be a defect, not a change.

Sounds reasonable but I don't think it applies here because the "what to change" section and even the title mention what to do about it. Note that the ticket description doesn't describe a problem which is why I also changed the description headlines.

[fhd]

I initially suspected that we also have to do something with subscriptions2.xml here, but I've looked into that today and the only thing we're interested in is really subscriptions.xml, fetched from the host application, as the description says. So yeah, I agree, makes more sense as a change.

[greiner]

​https://hg.adblockplus.org/adblockplusui/rev/6972c701829b