[PATCH] Remove obsolete, never-implemented XSI STREAMS declarations

[Florian Weimer]

* Andreas Schwab:

> Are there plans to remove the STREAMS option from future POSIX
> revisions?

I think all the interfaces are tagged OB, which is described as:

| [OB] [Option Start] Obsolescent [Option End]
|
| The functionality described may be removed in a future version of this
| volume of POSIX.1-2017. Strictly Conforming POSIX Applications and
| Strictly Conforming XSI Applications shall not use obsolescent
| features.
|
| Where applicable, the material is identified by use of the OB margin
| legend.

To me, this suggests that a plan to remove them exists.

Thanks,
Florian