Revert of [simd.js] Update to spec version 0.8.2.

test/cctest/test-simd.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/objects.h"
 #include "src/ostreams.h"
 #include "test/cctest/cctest.h"
 
@@ skipping 91 matching lines @@
 
 TEST(SimdTypes) {
   CcTest::InitializeVM();
   Isolate* isolate = CcTest::i_isolate();
   Factory* factory = isolate->factory();
 
   HandleScope sc(isolate);
 
   FLOAT_TEST(Float32x4, 4)
   INT_TEST(Int32x4, 4, int32_t)
-  INT_TEST(Uint32x4, 4, uint32_t)
   BOOL_TEST(Bool32x4, 4)
   INT_TEST(Int16x8, 8, int16_t)
-  INT_TEST(Uint16x8, 8, uint16_t)
   BOOL_TEST(Bool16x8, 8)
   INT_TEST(Int8x16, 16, int8_t)
-  INT_TEST(Uint8x16, 16, uint8_t)
   BOOL_TEST(Bool8x16, 16)
 }