Remove excess logic.

src/miner.cpp

@@ -317,9 +317,7 @@ int BlockAssembler::UpdatePackagesForAdded(const CTxMemPool::setEntries& already
 bool BlockAssembler::SkipMapTxEntry(CTxMemPool::txiter it, indexed_modified_transaction_set &mapModifiedTx, CTxMemPool::setEntries &failedTx)
 {
     assert (it != mempool.mapTx.end());
-    if (mapModifiedTx.count(it) || inBlock.count(it) || failedTx.count(it))
-        return true;
-    return false;
+    return mapModifiedTx.count(it) || inBlock.count(it) || failedTx.count(it);
 }
 
 void BlockAssembler::SortForBlock(const CTxMemPool::setEntries& package, CTxMemPool::txiter entry, std::vector<CTxMemPool::txiter>& sortedEntries)

src/qt/bantablemodel.cpp

@@ -181,7 +181,5 @@ void BanTableModel::sort(int column, Qt::SortOrder order)
 
 bool BanTableModel::shouldShow()
 {
-    if (priv->size() > 0)
-        return true;
-    return false;
+    return priv->size() > 0;
 }

src/validation.cpp

@@ -1330,10 +1330,7 @@ void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight)
 bool CScriptCheck::operator()() {
     const CScript &scriptSig = ptxTo->vin[nIn].scriptSig;
     const CScriptWitness *witness = &ptxTo->vin[nIn].scriptWitness;
-    if (!VerifyScript(scriptSig, scriptPubKey, witness, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, amount, cacheStore, *txdata), &error)) {
-        return false;
-    }
-    return true;
+    return VerifyScript(scriptSig, scriptPubKey, witness, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, amount, cacheStore, *txdata), &error);
 }
 
 int GetSpendHeight(const CCoinsViewCache& inputs)