* dwarf2out.c (SECTION_ASM_OP,
	ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL): Remove.
	* system.h (SECTION_ASM_OP): Poison.
	* tree.c (FILE_FUNCTION_PREFIX_LEN): Remove.
	* config/alpha/alpha-interix.h, config/mips/linux.h
	(ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL): Remove.
	* config/mmix/mmix-protos.h, config/mmix/mmix.c
	(mmix_asm_output_define_label_difference_symbol): Remove.
	* config/mmix/mmix.h
	(ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL): Remove.
cp:
	* cp-tree.h (FILE_FUNCTION_PREFIX_LEN): Remove.

From-SVN: r55690