Revert "Introduce a new ToggleGraphicsProfiler command (#7607)" (#8567)

This reverts commit 0cebf68306.

Although this thing is very cool, it is a top source of crashes.

Example crash:
```
Segmentation fault: 11 on thread 26
  objc_retain +16
  invocation function for block in Overlay::onCommandBufferCommit(id<MTLCommandBuffer>) +60
  MTLDispatchListApply +52
```

Release Notes:

- Removed "Toggle Graphics Profiler" as it crashes too much.

crates/gpui/src/platform/linux/x11/window.rs

@@ -525,8 +525,4 @@ impl PlatformWindow for X11Window {
         let inner = self.0.inner.borrow_mut();
         inner.renderer.sprite_atlas().clone()
     }
-
-    fn set_graphics_profiler_enabled(&self, enabled: bool) {
-        unimplemented!("linux")
-    }
 }