Removed callbacks
Removed callbacks

Switched from using animation callbacks to delay based queue. This means that all of the data is set up the start, which reduces computational load during animation.

Signed-off-by: Shen Yichen <be3bb257ef8d73236feaba36cd3e5ee9095e6819@gmail.com>

yichenshen/clockwall.js,yichenshen/clockwall.js