Delete A step Itanium support.

Delete A step Itanium support.

	* config/ia64/ia64.c (ia64_print_operand_address): Delete 'B' support.
	(fixup_errata): Delete TARGET_A_STEP use.
	* config/ia64/ia64.h (MASK_A_STEP, TARGET_A_STEP): Delete.
	(TARGET_SWITCHES): Delete -ma-step option.
	* config/ia64/ia64.md (all FP patterns): Delete %B0.
	(movqicc_astep, movqi_internal_astep, movhicc_astep,
	movhi_internal_astep, movsicc_astep, movsi_internal_astep, movdi+1,
	movdi_internal_astep, movsfcc_astep, movsf_internal_astep,
	movdfcc_astep, movdf_internal_astep, movtfcc_astep,
	movtf_internal_astep, cmovdi_internal_astep, cmovsi_internal_astep):
	Delete.
	(movqi_internal, movhi_internal, movsi_internal, movdi_internal,
	movsf_internal, movdf_internal, movtf_internal, cmovdi_internal,
	cmovsi_internal): Delete ! TARGET_A_STEP check.

From-SVN: r39075