A call to `removeprunedfunds` does not update the transaction list in the GUI, and trying to access the info of a deleted transaction will result in a segfault.

```bash
(lldb) run
Process 4859 launched: '/Users/michael/github/bitcoin/src/qt/bitcoin-qt' (x86_64)
2019-09-24 15:41:53.763094+0800 bitcoin-qt[4859:390268] MessageTracer: Falling back to default whitelist
Process 4859 stopped
* thread #1, name = 'bitcoin-main', queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x34)
    frame #0: 0x00000001001c9bf6 bitcoin-qt`TransactionDesc::FormatTxStatus(wtx=0x00007ffeefbfc0e0, status=0x00007ffeefbfc0c0, inMempool=false, numBlocks=1) at transactiondesc.cpp:33:31
   30  	{
   31  	    if (!status.is_final)
   32  	    {
-> 33  	        if (wtx.tx->nLockTime < LOCKTIME_THRESHOLD)
   34  	            return tr("Open for %n more block(s)", "", wtx.tx->nLockTime - numBlocks);
   35  	        else
   36  	            return tr("Open until %1").arg(GUIUtil::dateTimeStr(wtx.tx->nLockTime));
Target 0: (bitcoin-qt) stopped.
```
if (*block_height % 100 == 0 && progress_end - progress_begin > 0.0) {
            ShowProgress(strprintf("%s " + _("Rescanning...").translated, GetDisplayName()), std::max(1, std::min(99, (int)(m_scanning_progress * 100))));
        }
        if (GetTime() >= nNow + 60) {
            nNow = GetTime();
            WalletLogPrintf("Still rescanning. At block %d. Progress=%f\n", *block_height, progress_current);
        }
        CBlock block;
        if (chain().findBlock(block_hash, &block) && !block.IsNull()) {
            auto locked_chain = chain().lock();
            LOCK(cs_wallet);
            if (!locked_chain->getBlockHeight(block_hash)) {
                
                
                
                
                result.last_failed_block = block_hash;
                result.status = ScanResult::FAILURE;
                break;
            }
            for (size_t posInBlock = 0; posInBlock < block.vtx.size(); ++posInBlock) {
                SyncTransaction(block.vtx[posInBlock], CWalletTx::Status::CONFIRMED, block_hash, posInBlock, fUpdate);
            }
            
            result.last_scanned_block = block_hash;
            result.last_scanned_height = *block_height;
        } else {
            
            result.last_failed_block = block_hash;
            result.status = ScanResult::FAILURE;