message: CRequestManager::Rejected() remove redundancy
  Remove redundant check for REJECT_NONSTANDARD.
  (from clang static analysis)
diff: @@ -360,9 +360,6 @@ void CRequestManager::Rejected(const CInv &obj, CNode *from, unsigned char reaso
  else if (reason == REJECT_DUST)
  {
  }
  - else if (reason == REJECT_NONSTANDARD)
  - {
  - }
  else
  {
  LOG(REQ, "ReqMgr: Unknown TX rejection code [0x%x].\n", reason);
  