[PATCH 34/34] Linux: Cleanups after librt move

[Florian Weimer]

* Adhemerval Zanella:

> On 17/06/2021 16:00, Florian Weimer via Libc-alpha wrote:
>> librt.so is no longer installed for PTHREAD_IN_LIBC, and tests
>> are not linked against it.
>> 
>> GLIBC_PRIVATE symbols that were needed during the transition are
>> removed again.
>
> There are some more leftover I recently added to add timers on time64
> tests:
>
>   ifeq (yes,$(build-shared))
>   librt = $(common-objpfx)rt/librt.so
>   else
>   librt = $(common-objpfx)rt/librt.a
>   endif
>
> The patch looks ok, but you might want to update it against master.

Okay, given that those are in generic code, we need to bring back
$(librt).

Thanks,
Florian