* system.h (SUNOS4_SHARED_LIBRARIES): Poison.
	* collect2.c: Remove SUNOS4_SHARED_LIBRARIES code.
	* config/sparc/aout.h (TARGET_ASM_SELECT_SECTION): Don't define.
	* config/sparc/sparc.c (sparc_aout_select_section): Remove.
	(sparc_aout_select_rtx_section): Don't check
	SUNOS4_SHARED_LIBRARIES.
	* config/sparc/sparc.h (SUNOS4_SHARED_LIBRARIES): Don't define.

From-SVN: r79216