[bde] Remove from the curated registry.

[BillyONeal]

bde has been broken in vcpkg for a long time, as when we updated to a distro where python meant python3, it failed. #31961 , merged a couple of weeks ago, fixed this problem by updating to a more recent copy of bde. Unfortunately, the new copy of bde is link-incompatible with other vcpkg ports, as they vendor ryu and pcre2 with changes.

Given that this was broken for most customers for a long time anyway, I think we should deindex for now and bring it back if/when we have an understanding with upstream as to how this is to integrate with the rest of vcpkg' ecosystem.

[BillyONeal]

@adamncasey you did a lot of work to update this version. Do you have ideas on what we could do instead? For example, if bde hides all these symbols and doesn't try to install patched headers that could work for dynamic releases...

[adamncasey]

Thanks for raising - this is being looked into. There is a workable way forward here for ryu/pcre2 but suspect we won't be able to address this in the next few days.

[BillyONeal]

Thanks for raising - this is being looked into. There is a workable way forward here for ryu/pcre2 but suspect we won't be able to address this in the next few days.

It doesn't need to be "next few days" as long as it is being worked on. We can "skip" it in our CI testing temporarily if you're actually working on it like we just did for openvino. How about we skip for, say, 30 days, and check back afterwards?