chore: revise to remove redundant isFull()

mempool/clist_mempool.go

@@ -223,10 +223,6 @@ func (mem *CListMempool) CheckTx(tx types.Tx, cb func(*abci.Response), txInfo Tx
 
 	txSize := len(tx)
 
-	if err := mem.isFull(txSize); err != nil {
-		return err
-	}
-
 	// The size of the corresponding amino-encoded TxMessage
 	// can't be larger than the maxMsgSize, otherwise we can't
 	// relay it to peers.
@@ -367,22 +363,6 @@ func (mem *CListMempool) removeTx(tx types.Tx, elem *clist.CElement, removeFromC
 	}
 }
 
-func (mem *CListMempool) isFull(txSize int) error {
-	var (
-		memSize  = mem.Size()
-		txsBytes = mem.TxsBytes()
-	)
-
-	if memSize >= mem.config.Size || int64(txSize)+txsBytes > mem.config.MaxTxsBytes {
-		return ErrMempoolIsFull{
-			memSize, mem.config.Size,
-			txsBytes, mem.config.MaxTxsBytes,
-		}
-	}
-
-	return nil
-}
-
 func (mem *CListMempool) reserve(txSize int64) error {
 	mem.reservedMtx.Lock()
 	defer mem.reservedMtx.Unlock()