Repair --disable-sjlj-exceptions

It was broken by:

	2022-08-31  Martin Liska  <mliska@suse.cz>

	config.build: Remove deprecated ports.
	config.gcc: Likewise.
	config.host: Likewise.
	configure.ac: Likewise.
	configure: Regenerate.
	config/pa/pa-hpux10.h: Removed.
	config/pa/pa-hpux10.opt: Removed.
	config/pa/t-dce-thr: Removed.

gcc/
	* configure.ac (sjlj-exceptions): Restore dropped line.
	* configure: Regenerate.