[wasm] Mark all 64-bit instructions as supported on 32-bit platforms.

src/wasm/wasm-opcodes.h

Index: src/wasm/wasm-opcodes.h
diff --git a/src/wasm/wasm-opcodes.h b/src/wasm/wasm-opcodes.h
index 12a3a14f0b4f5f0879de2266155010c6fe2890b9..0e7dad80e18520d6ccedcf092c47cca73e0ef031 100644
--- a/src/wasm/wasm-opcodes.h
+++ b/src/wasm/wasm-opcodes.h
@@ -348,7 +348,6 @@ enum TrapReason {
 // A collection of opcode-related static methods.
 class WasmOpcodes {
  public:
-  static bool IsSupported(WasmOpcode opcode);
   static const char* OpcodeName(WasmOpcode opcode);
   static const char* ShortOpcodeName(WasmOpcode opcode);
   static FunctionSig* Signature(WasmOpcode opcode);