target/s390x: Use unwind data for helper_tprot

Reviewed-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

target/s390x/mem_helper.c

@@ -970,7 +970,6 @@ uint32_t HELPER(testblock)(CPUS390XState *env, uint64_t real_addr)
 uint32_t HELPER(tprot)(uint64_t a1, uint64_t a2)
 {
     /* XXX implement */
-
     return 0;
 }
 

target/s390x/translate.c

@@ -4054,7 +4054,6 @@ static ExitStatus op_testblock(DisasContext *s, DisasOps *o)
 
 static ExitStatus op_tprot(DisasContext *s, DisasOps *o)
 {
-    potential_page_fault(s);
     gen_helper_tprot(cc_op, o->addr1, o->in2);
     set_cc_static(s);
     return NO_EXIT;