remove asm-generic/ptrace.h v2

[Christoph Hellwig]

Is anyone going to pick this series up?

On Mon, May 20, 2019 at 08:00:13AM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> asm-generic/ptrace.h is a little weird in that it doesn't actually
> implement any functionality, but it provided multiple layers of macros
> that just implement trivial inline functions.  We implement those
> directly in the few architectures and be off with a much simpler
> design.
> 
> Changes since v1:
>  - add a missing empty line between functions
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