Remove timestamp

Author: kyb3r

SPONSORS.json

@@ -4,7 +4,6 @@
     "description": "Generate your own embed from [here](https://leovoel.github.io/embed-visualizer/) and make a pull request editing the `SPONSERS.json` file.",
     "url": "https://patreon.com/kyber",
     "color": 6071775,
-    "timestamp": "2019-06-10T02:37:45.739Z",
     "footer": {
       "icon_url": "https://cdn.discordapp.com/embed/avatars/0.png",
       "text": "footer text"