remove redundant check for very small utxos

lib/server.js

@@ -1342,11 +1342,6 @@ WalletService.prototype._selectTxInputs = function(txp, utxosToExclude, cb) {
     _.each(smallInputs, function(input, i) {
       log.debug('Input #' + i + ': ' + Utils.formatUtxos(input));
 
-      if (input.satoshis < feePerInput) {
-        log.debug('The input does not cover the extra fees (' + Utils.formatAmountInBtc(feePerInput) + ')');
-        return false;
-      }
-
       var netInputAmount = input.satoshis - feePerInput;
 
       log.debug('The input contributes ' + Utils.formatAmountInBtc(netInputAmount));