remove sleep call and remove runtime libs from git repo

.gitignore

@@ -1,2 +1,3 @@
 **/target
 **/Cargo.lock
+**/runtime_libs

src/lib.rs

@@ -80,7 +80,7 @@ impl Plugin for OpenXrPlugin {
             views,
             frame_state,
         ) = graphics::initialize_xr_graphics(primary_window).unwrap();
-        std::thread::sleep(Duration::from_secs(5));
+        // std::thread::sleep(Duration::from_secs(5));
         debug!("Configured wgpu adapter Limits: {:#?}", device.limits());
         debug!("Configured wgpu adapter Features: {:#?}", device.features());
         let mut future_xr_resources_inner = future_xr_resources_wrapper.lock().unwrap();