diff --git a/src/libFLAC/fixed.c b/src/libFLAC/fixed.c
index 75063687..40187357 100644
--- a/src/libFLAC/fixed.c
+++ b/src/libFLAC/fixed.c
@@ -154,7 +154,6 @@ void FLAC__fixed_compute_residual(const int32 data[], unsigned data_len, unsigne
 {
 	unsigned i;
 
-#if 0
 	switch(order) {
 		case 0:
 			for(i = 0; i < data_len; i++) {
@@ -187,32 +186,6 @@ void FLAC__fixed_compute_residual(const int32 data[], unsigned data_len, unsigne
 		default:
 			assert(0);
 	}
-#else
-	switch(order) {
-		case 0:
-			for(i = 0; i < data_len; i++)
-				residual[i] = data[i];
-			break;
-		case 1:
-			for(i = 0; i < data_len; i++)
-				residual[i] = data[i] - data[i-1];
-			break;
-		case 2:
-			for(i = 0; i < data_len; i++)
-				residual[i] = data[i] - 2*data[i-1] + data[i-2];
-			break;
-		case 3:
-			for(i = 0; i < data_len; i++)
-				residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
-			break;
-		case 4:
-			for(i = 0; i < data_len; i++)
-				residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
-			break;
-		default:
-			assert(0);
-	}
-#endif
 }
 
 void FLAC__fixed_restore_signal(const int32 residual[], unsigned data_len, unsigned order, int32 data[])