No need to return args as part of task.get

This reverts commit 831e22b4ff.
This reverts commit 6774514bd2.

src/tasks.js

@@ -14,6 +14,8 @@ exports = module.exports = {
     stopTask: stopTask,
     stopAllTasks: stopAllTasks,
 
+    removePrivateFields: removePrivateFields,
+
     // task types. if you add a task here, fill up the function table in taskworker
     TASK_APP: 'app',
     TASK_BACKUP: 'backup',
@@ -267,3 +269,9 @@ function getLogs(taskId, options, callback) {
 
     callback(null, transformStream);
 }
+
+// removes all fields that are strictly private and should never be returned by API calls
+function removePrivateFields(task) {
+    var result = _.pick(task, 'id', 'type', 'percent', 'message', 'error', 'active', 'creationTime', 'result', 'ts', 'success');
+    return result;
+}