Update src/node/db/API.js

Added a missing symicolon and removed the padID argument which is not passed(and thus leads to an errors because the callback lands in there).

src/node/db/API.js

@@ -555,9 +555,9 @@ Example returns:
 
 {code: 0, message:"ok"}
 */
-exports.checkToken = function(padID, callback)
+exports.checkToken = function(callback)
 {
-  callback()
+  callback();
 }