[binutils-gdb] sim: delete unused sim-inline.c rule

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT 1303206d7f8de81c685f486c857d533d5bcf827d ***

Author: Mike Frysinger <vapier@gentoo.org>
Branch: master
Commit: 1303206d7f8de81c685f486c857d533d5bcf827d

sim: delete unused sim-inline.c rule
This dates back to the start of the repo, but has never really been used.
The sim-inline.c file has been checked in to the source, and attempts to
build it in the build tree leads to a circular dep warning from make.  It
also doesn't produce a file that is usable -- it can't be compiled.  Punt!