* combine.c (record_promoted_value): Remove unused variable
	`links2'.

	* emit-rtl.c (renumber_insns): Likewise for `old_max_uid'.

	* global.c (record_conflicts): Likewise for `j'.

	* genoutput.c (output_insn_data): Don't unnecessarily cast away
	const-ness.

From-SVN: r30870