diff -r 62004f705d27 -r 423bcbb288ff src/hotspot/share/runtime/signature.hpp
--- a/src/hotspot/share/runtime/signature.hpp	Mon Feb 05 23:12:03 2018 +0100
+++ b/src/hotspot/share/runtime/signature.hpp	Tue Feb 06 10:28:22 2018 -0500
@@ -409,11 +409,6 @@
   const jbyte* raw_bytes()  { return _signature->bytes() + _begin; }
   int          raw_length() { return _end - _begin; }
 
-  jbyte raw_byte_at(int index) {
-    assert(index >= 0 && index < raw_length(), "index overflow");
-    return _signature->byte_at(_begin + index);
-  }
-
   // return same as_symbol except allocation of new symbols is avoided.
   Symbol* as_symbol_or_null();