fix issues with missing params variable

lib/api/timeboard.js

@@ -166,7 +166,7 @@ function update(dashId, title, description, graphs, templateVariables, callback)
  *  ```
  */
 function remove(dashId, callback){
-    client.request("DELETE", util.format("/dash/%s", dashId), params, callback);
+    client.request("DELETE", util.format("/dash/%s", dashId), {}, callback);
 }
 
 /*section: timeboard
@@ -187,7 +187,7 @@ function remove(dashId, callback){
  *  ```
  */
 function getAll(callback){
-    client.request("GET", "/dash", params, callback);
+    client.request("GET", "/dash", {}, callback);
 }
 
 /*section: timeboard
@@ -209,7 +209,7 @@ function getAll(callback){
  *  ```
  */
 function get(dashId, callback){
-    client.request("GET", util.format("/dash/%s", dashId), params, callback);
+    client.request("GET", util.format("/dash/%s", dashId), {}, callback);
 }
 
 module.exports = {