[PATCH] Remove redundant casts of memory allocating functions returning void *

[Mark Wielaard]

Hi Dmitry,

On Mon, Sep 06, 2021 at 08:00:00AM +0000, Dmitry V. Levin wrote:
> Return values of functions returning "void *", e.g. calloc, malloc,
> realloc, xcalloc, xmalloc, and xrealloc, do not need explicit casts.

This does make the code slightly more readable. And the cast doesn't
really add much useful info. So please apply.

Thanks,

Mark