[PATCH] aarch64: Eliminate unused variable warnings with -DNDEBUG

[Nick Clifton]

Hi Andrew,

> Ok for master and 2.42 branch?

Approved - please apply to master and branch.

> Incidentally, while two of these sections of code were added recently, the
> issue in aarch64-dis.c has been present since July 2022.

Yes - I only recently decided to add a build to my build farm that was configured
with -DNDEBUG.  The idea being to catch problems exactly like this...

Cheers
   Nick