[WASM] Eliminate SIMD boolean vector types.

src/wasm/function-body-decoder.cc

Index: src/wasm/function-body-decoder.cc
diff --git a/src/wasm/function-body-decoder.cc b/src/wasm/function-body-decoder.cc
index d8cee9df8484e51dbf979f66d95f55cb34f66e83..9241c2d448f59aa5cdc9bfde189f2b7b24d558ec 100644
--- a/src/wasm/function-body-decoder.cc
+++ b/src/wasm/function-body-decoder.cc
@@ -228,15 +228,6 @@ class WasmDecoder : public Decoder {
         case kLocalS128:
           type = kWasmS128;
           break;
-        case kLocalS1x4:
-          type = kWasmS1x4;
-          break;
-        case kLocalS1x8:
-          type = kWasmS1x8;
-          break;
-        case kLocalS1x16:
-          type = kWasmS1x16;
-          break;
         default:
           decoder->error(decoder->pc() - 1, "invalid local type");
           return false;
@@ -761,12 +752,6 @@ class WasmFullDecoder : public WasmDecoder {
         return builder_->Float64Constant(0);
       case kWasmS128:
         return builder_->S128Zero();
-      case kWasmS1x4:
-        return builder_->S1x4Zero();
-      case kWasmS1x8:
-        return builder_->S1x8Zero();
-      case kWasmS1x16:
-        return builder_->S1x16Zero();
       default:
         UNREACHABLE();
     }