Actually remove launch

Author: trowski

src/functions.php

@@ -2,19 +2,6 @@
 
 namespace Revolt;
 
-/**
- * Executes the given callback in a new fiber.
- *
- * Any exceptions thrown are forwarded to the event loop error handler. The return value of the function is discarded.
- *
- * @param callable():void $callback
- */
-function launch(callable $callback): void
-{
-    $fiber = new \Fiber(__NAMESPACE__ . '\\EventLoop\\Internal\\run');
-    EventLoop::queue([$fiber, 'start'], $callback);
-}
-
 /**
  * Returns the current time relative to an arbitrary point in time.
  *