[wasm] Remove dangerous ByteArray::data accessor.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index af1261538e2b553e6bdac16a9a6357da5d1411bb..a48d7c8576dd03b1daa745ee9a6f7b1282a591b7 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -4059,10 +4059,6 @@ byte ByteArray::get(int index) {
   return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize);
 }
 
-const byte* ByteArray::data() const {
-  return reinterpret_cast<const byte*>(FIELD_ADDR_CONST(this, kHeaderSize));
-}
-
 void ByteArray::set(int index, byte value) {
   DCHECK(index >= 0 && index < this->length());
   WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value);