No_Safepoint_Verifier is not necessary in Rewriter::scan_method

This is legacy code from the PermGen error. The No_Safepoint_Verifier is no longer needed because Method will never move with JDK8 and later.


void Rewriter::scan_method(Method* method, bool reverse, bool* invokespecial_error) {

  int nof_jsrs = 0;
  bool has_monitor_bytecodes = false;

  {
    // We cannot tolerate a GC in this block, because we've
    // cached the bytecodes in 'code_base'. If the Method*
    // moves, the bytecodes will also move.
    No_Safepoint_Verifier nsv;
    Bytecodes::Code c;