* doc/tm.texi (ASM_OUTPUT_EH_REGION_BEG, ASM_OUTPUT_EH_REGION_END,
	ASM_OUTPUT_LABELREF_AS_INT, DOESNT_NEED_UNWINDER, EH_TABLE_LOOKUP,
	OBJC_SELECTORS_WITHOUT_LABELS, OMIT_EH_TABLE): Remove
	documentation of obsolete macros.
	* system.h: Poison these macros.
	* config/d30v/d30v.h, config/ns32k/encore.h,
	config/stormy16/stormy16.h: Remove definitions and commented out
	definitions of obsolete macros.

From-SVN: r48650