Revert "Add support for Altera's Nios-II softcore architecture"

The patch originally submitted by Ezequiel García was OK, but I somehow
managed to mangle it so that most of the patch was not applied.

According to Ezequiel García, an architecture port based on the generic
syscall ABI is in progress.

This reverts commit 61e426e87ac81be4b4ff9de581635b4ea585624f.
2 files changed