arch: Remove "process()" from the Decoder interface.

This method was only ever an implementation detail on ARM and x86, the
only places it actually did anything. Remove it from the other decoders,
and also make it protected on x86 to remove confusion.

Change-Id: I3a719648039c1edfbc2bd044f0a21c8983b249f5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/52075
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
5 files changed