message: Remove unnecessary cs_main lock from rest.cpp
diff: @@ -543,7 +543,6 @@ static bool rest_getutxos(HTTPRequest *req, const std::string &strURIPart)
  std::vector<bool> hits;
  bitmap.resize((vOutPoints.size() + 7) / 8);
  {
  - LOCK(cs_main);
  READLOCK(mempool.cs);
  CCoinsView viewDummy;
  