util: Delete the very obsolete "compile" script.
util: Delete the very obsolete "compile" script.

This script is basically a wrapper around scons. Since scons is already
a pretty robust python based build environment, there doesn't seem to be
much need to add another python wrapper around it.

Also, this script is quite out of date. For instance, it only mentions
SPARC and MIPS (it used to mention ALPHA, but that was deleted), and
still makes reference to separate _FS and _SE builds which haven't been
a thing for many years.

Change-Id: I0e9fefaa5b3c2d092f70ad01b904eb7e64e5361e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/41455
Reviewed-by: Ciro Santilli <f9f94c17362144ef13d3dda5cd3efb8325112763@arm.com>
Maintainer: Gabe Black <d3e8afea784ab4a50a2dbf9149d2eaa8478e1cbc@gmail.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>

gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5,gem5/gem5