[runtime] First step to sanitize regexp literal creation.

src/ppc/macro-assembler-ppc.h

Index: src/ppc/macro-assembler-ppc.h
diff --git a/src/ppc/macro-assembler-ppc.h b/src/ppc/macro-assembler-ppc.h
index 24064580874db35f1ec65bb3a82b3348e8318cbc..45d44ed64547f10e5060c443dcaa0dee0205bcb5 100644
--- a/src/ppc/macro-assembler-ppc.h
+++ b/src/ppc/macro-assembler-ppc.h
@@ -688,9 +688,6 @@ class MacroAssembler : public Assembler {
                                    Register heap_number_map,
                                    Label* gc_required);
 
-  // Copies a fixed number of fields of heap objects from src to dst.
-  void CopyFields(Register dst, Register src, RegList temps, int field_count);
-
   // Copies a number of bytes from src to dst. All registers are clobbered. On
   // exit src and dst will point to the place just after where the last byte was
   // read or written and length will be zero.