* genattrtab.c (attr_desc): Remove negative_ok and unsigned_p.
	(check_attr_value, write_attr_get, write_expr_attr_cache,
	find_attr, make_internal_attr): Don't reference negative_ok or
	unsigned_p.
	* genattrtab.h (ATTR_NEGATIVE_OK, ATTR_UNSIGNED,
	ATTR_FUNC_UNITS, ATTR_BLOCKAGE): Remove.
	(ATTR_STATIC): Adjust the value.

From-SVN: r97841