[Wallet] remove "unused" ThreadFlushWalletDB from removeprunedfunds

Github-Pull: #8765
Rebased-From: c6f5ca822f

src/wallet/rpcdump.cpp

@@ -346,8 +346,6 @@ UniValue removeprunedfunds(const UniValue& params, bool fHelp)
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Transaction does not exist in wallet.");
     }
 
-    ThreadFlushWalletDB(pwalletMain->strWalletFile);
-
     return NullUniValue;
 }