refactor: remove unnecessary level of depth from runInVm

src/app/execution/txRunner.js

@@ -68,13 +68,16 @@ TxRunner.prototype.execute = function (args, callback) {
   if (!executionContext.isVM()) {
     self.runInNode(args.from, args.to, data, args.value, args.gasLimit, args.useCall, callback)
   } else {
+    try {
       self.runInVm(args.from, args.to, data, args.value, args.gasLimit, args.useCall, callback)
+    } catch (e) {
+      callback(e, null)
+    }
   }
 }
 
 TxRunner.prototype.runInVm = function (from, to, data, value, gasLimit, useCall, callback) {
   const self = this
-  try {
   var account = self.vmaccounts[from]
   if (!account) {
     return callback('Invalid account selected')
@@ -119,9 +122,6 @@ TxRunner.prototype.runInVm = function (from, to, data, value, gasLimit, useCall,
       transactionHash: ethJSUtil.bufferToHex(new Buffer(tx.hash()))
     })
   })
-  } catch (e) {
-    callback(e, null)
-  }
 }
 
 TxRunner.prototype.runInNode = function (from, to, data, value, gasLimit, useCall, callback) {