various i386-aout and i386-coff target removal

Also tidies some other aout leftovers in binutils-common.exp.

bfd/
	* Makefile.am: Remove support for assorted i386 aout and coff targets.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* doc/bfdint.texi: Likewise.
	* targets.c: Likewise.
	* freebsd.h: Delete.
	* i386dynix.c: Delete.
	* i386freebsd.c: Delete.
	* i386linux.c: Delete.
	* i386mach3.c: Delete.
	* i386netbsd.c: Delete.
	* i386os9k.c: Delete.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
binutils/
	* testsuite/lib/binutils-common.exp: Remove support for assorted
	aout targets.
gas/
	* Makefile.am: Remove support for assorted i386 aout and coff targets.
	* config/obj-elf.c: Likewise.
	* config/tc-i386.h: Likewise.
	* configure.ac: Likewise.
	* configure.tgt: Likewise.
	* config/te-dynix.h: Delete.
	* config/te-i386aix.h: Delete.
	* config/te-mach.h: Delete.
	* Makefile.in: Regenerate.
	* config.in: Regenerate.
	* configure: Regenerate.
	* po/POTFILES.in: Regenerate.
include/
	* aout/dynix3.h: Delete.
ld/
	* Makefile.am: Remove support for assorted i386 aout and coff targets.
	* configure.tgt: Likewise.
	* testsuite/ld-discard/discard.exp: Likewise.
	* testsuite/ld-elf/binutils.exp: Likewise.
	* testsuite/ld-elf/tls.exp: Likewise.
	* testsuite/ld-elf/tls_common.exp: Likewise.
	* testsuite/ld-elfvers/vers.exp: Likewise.
	* testsuite/ld-elfvsb/elfvsb.exp: Likewise.
	* testsuite/ld-elfweak/elfweak.exp: Likewise.
	* testsuite/ld-gc/abi-note.d: Likewise.
	* testsuite/ld-gc/pr19167.d: Likewise.
	* testsuite/ld-gc/pr20022.d: Likewise.
	* testsuite/ld-gc/start.d: Likewise.
	* testsuite/ld-gc/stop.d: Likewise.
	* testsuite/ld-i386/i386.exp: Likewise.
	* testsuite/ld-ifunc/binutils.exp: Likewise.
	* testsuite/ld-ifunc/ifunc.exp: Likewise.
	* testsuite/ld-linkonce/linkonce.exp: Likewise.
	* testsuite/ld-plugin/lto.exp: Likewise.
	* testsuite/ld-scripts/empty-address-2a.d: Likewise.
	* testsuite/ld-scripts/empty-address-2b.d: Likewise.
	* testsuite/ld-scripts/phdrs2.exp: Likewise.
	* testsuite/ld-scripts/section-match-1.d: Likewise.
	* testsuite/ld-shared/shared.exp: Likewise.
	* testsuite/ld-size/size.exp: Likewise.
	* testsuite/ld-sparc/sparc.exp: Likewise.
	* emulparams/i386coff.sh: Delete.
	* emulparams/i386linux.sh: Delete.
	* emulparams/i386mach.sh: Delete.
	* emulparams/i386nbsd.sh: Delete.
	* emulparams/vsta.sh: Delete.
	* scripttempl/i386coff.sc: Delete.
	* Makefile.in: Regenerate.
	* po/BLD-POTFILES.in: Regenerate.

gas/configure

@@ -12223,14 +12223,6 @@ _ACEOF
 
     generic_target=${cpu_type}-${target_vendor}-${target_os}
     case ${generic_target} in
-      i386-*-sco3.2v5*)
-	if test ${this_target} = $target; then
-
-$as_echo "#define SCO_ELF 1" >>confdefs.h
-
-	fi
-	;;
-
       i386-*-msdosdjgpp* \
       | i386-*-go32* \
       | i386-go32-rtems*)