[PATCH 1/6] nptl: Move Linux pthread_kill to nptl

[Florian Weimer]

* Adhemerval Zanella via Libc-alpha:

> The nptl already expects a Linux syscall internak.  Also
> __is_internal_signal and the DEBUGGING_P check is removed.

Typo: internak

And __is_internal_signal is still there?