Review changes

runtime/lib/byte_array.dart

Index: runtime/lib/byte_array.dart
diff --git a/runtime/lib/byte_array.dart b/runtime/lib/byte_array.dart
index d2e1ec0ebd48c7bab33549195697cfcfa010e81c..5dcf1dc4e15116c499b01cf259f83953fe64c3c3 100644
--- a/runtime/lib/byte_array.dart
+++ b/runtime/lib/byte_array.dart
@@ -445,10 +445,6 @@ abstract class _ByteArrayBase {
   int _getUint64(int byteOffset) native "ByteArray_getUint64";
   int _setUint64(int byteOffset, int value) native "ByteArray_setUint64";
 
-  Float32x4 _getFloat32x4(int byteOffset) native "ByteArray_getFloat32x4";
-  int _setFloat32x4(int byteOffset, Float32x4 value)
-      native "ByteArray_setFloat32x4";
-
   double _getFloat32(int byteOffset) native "ByteArray_getFloat32";
   int _setFloat32(int byteOffset, double value) native "ByteArray_setFloat32";
 
@@ -2010,13 +2006,6 @@ class _ByteArrayView implements ByteArray {
     return _array._setUint64(_offset + byteOffset, value);
   }
 
-  Float32x4 getFloat32x4(int byteOffset) {
-    return _array._getFloat32x4(_offset + byteOffset);
-  }
-  int setFloat32x4(int byteOffset, Float32x4 value) {
-    return _array._setFloat32x4(_offset + byteOffset, value);
-  }
-
   double getFloat32(int byteOffset) {
     return _array._getFloat32(_offset + byteOffset);
   }