config.gcc: Delete stanza for arm-semi-aof and armel-semi-aof targets.

config.gcc: Delete stanza for arm-semi-aof and armel-semi-aof targets.

	* config.gcc: Delete stanza for arm-semi-aof and
	armel-semi-aof targets.
	* config/arm/arm-protos.h
	* config/arm/arm.c
	* config/arm/arm.h: Delete all #ifdef AOF_ASSEMBLER blocks;
	make all #ifndef AOF_ASSEMBLER blocks unconditional.  Also
	delete aof_pic_label and remove mention of AOF in comments.
	* config/arm/arm.md: Delete patterns used only for AOF assembly.
	* config/arm/aof.h
	* config/arm/semiaof.h
	* config/arm/t-semi: Delete file.

From-SVN: r128052