[PATCH 4/4] Remove powerpc64 strspn, strcspn, and strpbrk implementation

[Paul E. Murphy]

Hi Adhemerval,

Thanks for commonizing that. I'm surprised it hasn't been done earlier.

Anyhow, coincidental timing. I posted https://sourceware.org/ml/libc-alpha/2016-03/msg00642.html
friday to optimize strspn with vector bit permutes. We'll need to coordinate
these patches.

Thanks,
Paul