[wasm] Remove non-standard kExprI8Const bytecode

src/wasm/wasm-interpreter.cc

 // Copyright 2016 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/wasm/wasm-interpreter.h"
 
 #include "src/utils.h"
 #include "src/wasm/decoder.h"
 #include "src/wasm/function-body-decoder.h"
 #include "src/wasm/wasm-external-refs.h"
@@ skipping 1337 matching lines @@
           continue;
         }
         case kExprUnreachable: {
           DoTrap(kTrapUnreachable, pc);
           return CommitPc(pc);
         }
         case kExprEnd: {
           blocks_.pop_back();
           break;
         }
-        case kExprI8Const: {
-          ImmI8Operand operand(&decoder, code->at(pc));
-          Push(pc, WasmVal(operand.value));
-          len = 1 + operand.length;
-          break;
-        }
         case kExprI32Const: {
           ImmI32Operand operand(&decoder, code->at(pc));
           Push(pc, WasmVal(operand.value));
           len = 1 + operand.length;
           break;
         }
         case kExprI64Const: {
           ImmI64Operand operand(&decoder, code->at(pc));
           Push(pc, WasmVal(operand.value));
           len = 1 + operand.length;
@@ skipping 514 matching lines @@
 
 ControlTransferMap WasmInterpreter::ComputeControlTransfersForTesting(
     Zone* zone, const byte* start, const byte* end) {
   ControlTransfers targets(zone, nullptr, start, end);
   return targets.map_;
 }
 
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8