Remove netbsdpe support

netbsdpe was deprecated in c2ce831330e10dab4703094491f80b6b9a5c2289.
Since then, a release has passed (2.37), and it was marked obselete in
5c9cbf07f3f972ecffe13d858010b3179df17b32. Unless I am mistaken, that
means we can now remove support altogether.

All branches in the "active" code are remove, and the target is
additionally marked as obsolete next to the other removed ones for
libbfd and gdb.

Per [1] from the NetBSD toolchain list, PE/COFF support was removed a
decade ago. Furthermore, the sole mention of this target in the binutils
commit history was in 2002. Together, I'm led to believe this target
hasn't seen much attention in quite a while.

[1]: https://mail-index.netbsd.org/tech-toolchain/2021/06/16/msg003996.html

bfd/
	* config.bfd: Remove netbsdpe entry.
binutils/
	* configure.ac: Remove netbsdpe entry.
	* testsuite/lib/binutils-common.exp (is_pecoff_format): Likewise.
	* configure: Regenerate.
gas/
	* configure.tgt: Remove netbsdpe entry.
gdb/
	* configure.tgt: Add netbsdpe to removed targets.
ld/
	* configure.tgt: Remove netbsdpe entry.
	* testsuite/ld-bootstrap/bootstrap.exp: Likewise.

bfd/config.bfd

@@ -614,10 +614,6 @@ case "${targ}" in
     targ_selvecs="iamcu_elf32_vec"
     targ64_selvecs="x86_64_elf64_vec l1om_elf64_vec k1om_elf64_vec"
     ;;
-  i[3-7]86-*-netbsdpe*)
-    targ_defvec=i386_pe_vec
-    targ_selvecs="i386_pe_vec i386_pei_vec i386_elf32_vec iamcu_elf32_vec"
-    ;;
   i[3-7]86-*-openbsd*)
     targ_defvec=i386_elf32_vec
     targ_selvecs="iamcu_elf32_vec"

binutils/configure

@@ -14522,7 +14522,7 @@ do
 	  BUILD_WINDMC='$(WINDMC_PROG)$(EXEEXT)'
 	  BUILD_DLLWRAP='$(DLLWRAP_PROG)$(EXEEXT)'
 	  ;;
-	i[3-7]86-*-pe* | i[3-7]86-*-cygwin* | i[3-7]86-*-mingw32** | i[3-7]86-*-netbsdpe*)
+	i[3-7]86-*-pe* | i[3-7]86-*-cygwin* | i[3-7]86-*-mingw32**)
   	  BUILD_DLLTOOL='$(DLLTOOL_PROG)$(EXEEXT)'
 	  if test -z "$DLLTOOL_DEFAULT"; then
 	    DLLTOOL_DEFAULT="-DDLLTOOL_DEFAULT_I386"

binutils/configure.ac

@@ -358,7 +358,7 @@ do
 	  BUILD_DLLWRAP='$(DLLWRAP_PROG)$(EXEEXT)'
 	  ;;
 changequote(,)dnl
-	i[3-7]86-*-pe* | i[3-7]86-*-cygwin* | i[3-7]86-*-mingw32** | i[3-7]86-*-netbsdpe*)
+	i[3-7]86-*-pe* | i[3-7]86-*-cygwin* | i[3-7]86-*-mingw32**)
 changequote([,])dnl
   	  BUILD_DLLTOOL='$(DLLTOOL_PROG)$(EXEEXT)'
 	  if test -z "$DLLTOOL_DEFAULT"; then

binutils/testsuite/lib/binutils-common.exp

@@ -105,7 +105,6 @@ proc is_pecoff_format args {
 	 || [istarget $m_os-cygwin*]
 	 || [istarget $m_os-interix*]
 	 || [istarget $m_os-mingw*]
-	 || [istarget $m_os-netbsdpe*]
 	 || [istarget $m_os-pe*]
 	 || [istarget $m_os-winnt*] } {
 	return 1

gas/configure.tgt

@@ -224,7 +224,6 @@ case ${generic_target} in
   i386-*-fuchsia*)			fmt=elf ;;
   i386-*-genode*)			fmt=elf ;;
   i386-*-bsd*)				fmt=aout em=386bsd ;;
-  i386-*-netbsdpe*)			fmt=coff em=pe ;;
   i386-*-netbsd*-gnu* | \
   i386-*-knetbsd*-gnu | \
   i386-*-netbsd* | \

gdb/configure.tgt

@@ -14,6 +14,7 @@
 case $targ in
  *-*-irix* | \
  *-*-solaris2.[01] | *-*-solaris2.[2-9]* | *-*-solaris2.10* | \
+ *-*-netbsdpe* | \
  alpha*-*-osf* | \
  alpha*-*-freebsd* | \
  alpha*-*-kfreebsd*-gnu | \

ld/configure.tgt

@@ -347,9 +347,6 @@ i[3-7]86-*-openbsd*)
 			targ_emul=elf_i386
 			targ_extra_emuls="elf_iamcu"
 			;;
-i[3-7]86-*-netbsdpe*)	targ_emul=i386pe
-			targ_extra_ofiles="deffilep.o pe-dll.o"
-			;;
 i[3-7]86-*-elfiamcu)	targ_emul=elf_iamcu
 			targ_extra_emuls=elf_i386
 			;;

ld/testsuite/ld-bootstrap/bootstrap.exp

@@ -216,8 +216,7 @@ foreach flags $test_flags {
 	|| [istarget "*-*-winnt*"]
 	|| [istarget "*-*-mingw*"]
 	|| [istarget "*-*-interix*"]
-	|| [istarget "*-*-beospe*"]
-	|| [istarget "*-*-netbsdpe*"]} {
+	|| [istarget "*-*-beospe*"]} {
 	# Trim off the date present in PE binaries by only looking
 	#   at the ends of the files
 	# Although this works, a way to set the date would be better.