target/s390x: Remove floatX_maybe_silence_nan from conversions

This is now handled properly by the generic softfloat code.

Cc: Alexander Graf <agraf@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x/fpu_helper.c

@@ -269,47 +269,47 @@ uint64_t HELPER(ldeb)(CPUS390XState *env, uint64_t f2)
 {
     float64 ret = float32_to_float64(f2, &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return float64_maybe_silence_nan(ret, &env->fpu_status);
+    return ret;
 }
 
 /* convert 128-bit float to 64-bit float */
 uint64_t HELPER(ldxb)(CPUS390XState *env, uint64_t ah, uint64_t al)
 {
     float64 ret = float128_to_float64(make_float128(ah, al), &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return float64_maybe_silence_nan(ret, &env->fpu_status);
+    return ret;
 }
 
 /* convert 64-bit float to 128-bit float */
 uint64_t HELPER(lxdb)(CPUS390XState *env, uint64_t f2)
 {
     float128 ret = float64_to_float128(f2, &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return RET128(float128_maybe_silence_nan(ret, &env->fpu_status));
+    return RET128(ret);
 }
 
 /* convert 32-bit float to 128-bit float */
 uint64_t HELPER(lxeb)(CPUS390XState *env, uint64_t f2)
 {
     float128 ret = float32_to_float128(f2, &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return RET128(float128_maybe_silence_nan(ret, &env->fpu_status));
+    return RET128(ret);
 }
 
 /* convert 64-bit float to 32-bit float */
 uint64_t HELPER(ledb)(CPUS390XState *env, uint64_t f2)
 {
     float32 ret = float64_to_float32(f2, &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return float32_maybe_silence_nan(ret, &env->fpu_status);
+    return ret;
 }
 
 /* convert 128-bit float to 32-bit float */
 uint64_t HELPER(lexb)(CPUS390XState *env, uint64_t ah, uint64_t al)
 {
     float32 ret = float128_to_float32(make_float128(ah, al), &env->fpu_status);
     handle_exceptions(env, GETPC());
-    return float32_maybe_silence_nan(ret, &env->fpu_status);
+    return ret;
 }
 
 /* 32-bit FP compare */