message: Remove redundant redeclaration of rescanblockchain(...) in same scope
diff: @@ -4761,7 +4761,6 @@ extern UniValue importwallet(const JSONRPCRequest& request);
  extern UniValue importprunedfunds(const JSONRPCRequest& request);
  extern UniValue removeprunedfunds(const JSONRPCRequest& request);
  extern UniValue importmulti(const JSONRPCRequest& request);
  -extern UniValue rescanblockchain(const JSONRPCRequest& request);
  static const CRPCCommand commands[] =
  { // category name actor (function) argNames
  