hppa: Remove inner `fix:SF/DF` from fixed-point patterns

2024-11-13  John David Anglin  <danglin@gcc.gnu.org>

gcc/ChangeLog:

	PR target/117525
	* config/pa/pa.md (fix_truncsfsi2): Remove inner `fix:SF`.
	(fix_truncdfsi2, fix_truncsfdi2, fix_truncdfdi2,
	fixuns_truncsfsi2, fixuns_truncdfsi2, fixuns_truncsfdi2,
	fixuns_truncdfdi2): Likewise.