pcm/PcmDsd: remove "lsbfirst" support

src/pcm/PcmConvert.cxx

@@ -124,8 +124,7 @@ PcmConvert::Convert(ConstBuffer<void> buffer, Error &error)
 
 	if (format.format == SampleFormat::DSD) {
 		auto s = ConstBuffer<uint8_t>::FromVoid(buffer);
-		auto d = dsd.ToFloat(format.channels,
-				     false, s);
+		auto d = dsd.ToFloat(format.channels, s);
 		if (d.IsNull()) {
 			error.Set(pcm_domain,
 				  "DSD to PCM conversion failed");

src/pcm/PcmDsd.cxx

@@ -48,8 +48,7 @@ PcmDsd::Reset()
 }
 
 ConstBuffer<float>
-PcmDsd::ToFloat(unsigned channels, bool lsbfirst,
-		ConstBuffer<uint8_t> src)
+PcmDsd::ToFloat(unsigned channels, ConstBuffer<uint8_t> src)
 {
 	assert(!src.IsNull());
 	assert(!src.IsEmpty());
@@ -72,7 +71,7 @@ PcmDsd::ToFloat(unsigned channels, bool lsbfirst,
 
 		dsd2pcm_translate(dsd2pcm[c], num_frames,
 				  src.data + c, channels,
-				  lsbfirst, dest + c, channels);
+				  false, dest + c, channels);
 	}
 
 	return { dest, num_samples };

src/pcm/PcmDsd.hxx

@@ -41,7 +41,7 @@ public:
 
 	void Reset();
 
-	ConstBuffer<float> ToFloat(unsigned channels, bool lsbfirst,
+	ConstBuffer<float> ToFloat(unsigned channels,
 				   ConstBuffer<uint8_t> src);
 };