commands: Remove meme commands

The "plan" and "wen" commands were only ever being used to meme on
people and the answers given don't even reflect reality.

Author: awesomekling

src/commands/index.ts

@@ -20,7 +20,6 @@
 
 export { EmojiCommand } from "./emojiCommand";
 export { GithubCommand, ReviewListCommand } from "./githubCommand";
-export { PlanCommand } from "./planCommand";
 export { QuickLinksCommand } from "./quickLinksCommand";
 export { TestCommand } from "./testCommand";
 export { UserCommand } from "./userCommand";