Remove some dead code.

src/objects.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 6995 matching lines @@
     start_ = content.ToUC16Vector().start();
   }
 }
 
 
 void StringInputBuffer::Seek(unsigned pos) {
   Reset(pos, input_);
 }
 
 
-void SafeStringInputBuffer::Seek(unsigned pos) {
-  Reset(pos, input_);
-}
-
-
 // This method determines the type of string involved and then copies
 // a whole chunk of characters into a buffer.  It can be used with strings
 // that have been glued together to form a ConsString and which must cooperate
 // to fill up a buffer.
 void String::ReadBlockIntoBuffer(String* input,
                                  ReadBlockBuffer* rbb,
                                  unsigned* offset_ptr,
                                  unsigned max_chars) {
   ASSERT(*offset_ptr <= (unsigned)input->length());
   if (max_chars == 0) return;
@@ skipping 6841 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal