remove redundant check

cli.js

@@ -0,0 +1,3 @@
+var _ = require('lodash');
+var request = require('request');
+var program = require('commander');

db/copay.db/CURRENT

@@ -0,0 +1 @@
+MANIFEST-000021

db/copay.db/LOG

@@ -0,0 +1,3 @@
+2015/02/09-15:18:43.041206 106a0a000 Recovering log #20
+2015/02/09-15:18:43.042521 106a0a000 Delete type=0 #20
+2015/02/09-15:18:43.042604 106a0a000 Delete type=3 #19

db/copay.db/LOG.old

@@ -0,0 +1,3 @@
+2015/02/09-15:18:03.323403 103704000 Recovering log #18
+2015/02/09-15:18:03.324683 103704000 Delete type=0 #18
+2015/02/09-15:18:03.324769 103704000 Delete type=3 #17

lib/server.js

@@ -548,7 +548,6 @@ CopayServer.prototype.signTx = function(opts, cb) {
       id: opts.txProposalId
     }, function(err, txp) {
       if (err) return cb(err);
-      if (!txp) return cb(new ClientError('Transaction proposal not found'));
 
       var action = _.find(txp.actions, {
         copayerId: self.copayerId
@@ -602,7 +601,7 @@ CopayServer.prototype.rejectTx = function(opts, cb) {
     id: opts.txProposalId
   }, function(err, txp) {
     if (err) return cb(err);
-    if (!txp) return cb(new ClientError('Transaction proposal not found'));
+
     var action = _.find(txp.actions, {
       copayerId: self.copayerId
     });