powerpc/mm: Remove long disabled SLB code

[Michael Ellerman]

On Wed, 2016-16-03 at 10:56:20 UTC, Michael Ellerman wrote:
> We have a bunch of SLB related code in the tree which is there to handle
> dynamic VSIDs - but currently it's all disabled at compile time. The
> comments say "Keep that around for when we re-implement dynamic VSIDs".
> 
> But that was over 10 years ago (commit 3c726f8dee6f ("[PATCH] ppc64:
> support 64k pages")). The chance that it would still work unchanged is
> minimal, and in the meantime it's confusing to folks browsing/grepping
> the code. If we ever want to re-instate it, it's in the git history.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> Acked-by: Balbir Singh <bsingharora at gmail.com>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/1f4c66e80574e85aff25179fc7

cheers