Remove we32k support

Remove we32k support

include/
	* coff/we32k.h: Delete.
bfd/
	* Makefile.am: Remove we32k support.
	* archures.c: Likewise.
	* coffcode.h: Likewise.
	* config.bfd: Likewise.
	* configure.ac: Likewise.
	* targets.c: Likewise.
	* coff-we32k.c: Delete.
	* cpu-we32k.c: Delete.
	* Makefile.in: Regenerate.
	* bfd-in2.h: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
opcodes/
	* configure.ac: Remove we32k support.
	* configure: Regenerate.
bintuils/
	* testsuite/binutils-all/objdump.exp: Remove we32k support.