Compilable ELF GDB.

2013-03-20  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* configure.tgt (arc*-*-*): Remove unneeded source files.
	* Makefile.in (HFILES_NO_SRCDIR): Remove unneeded ARC headers.
	* arc-aux-registers.c: Deleted.
	* arc-aux-registers.h: Deleted.
	* arc-board.c: Deleted.
	* arc-board.h: Deleted.
	* arc-elf-tdep.c: Update commenting.
	(_initialize_arc_elf_tdep): Deleted.
	(arc_gdbarch_osabi_init): Renamed from arc_elf_init_abi and params
	changed.
	* arc-linux-tdep.c (arc_gdbarch_osabi_init): Renamed from
	arc_linux_init_abi and params changed.
	(_initialize_arc_linux_tdep): Deleted.
	* arc-tdep.c (arc_gdbarch_init): Replace call to
	gdbarch_init_osabi by call to arc_gdbarch_osabi_init.
	* arc-tdep.h (arc_gdbarch_osabi_init): Replaces arc_get_osabi.