Disable main_thread_id assertion for debug build

This code block was previously commented out and reactivated without a clear reason in the git history
It causes a runtime panic in debug builds for Android
If this assertion is required, please implement logic that also considers Android

Author: jeyum2

godot-ffi/src/binding/single_threaded.rs

@@ -92,6 +92,7 @@ impl BindingStorage {
     pub unsafe fn get_binding_unchecked() -> &'static GodotBinding {
         let storage = Self::storage();
 
+        /*
         if cfg!(debug_assertions) {
             let main_thread_id = storage.main_thread_id.get().expect(
                 "Godot engine not available; make sure you are not calling it from unit/doc tests",
@@ -103,6 +104,7 @@ impl BindingStorage {
                 "attempted to access binding from different thread than main thread; this is UB - use the \"experimental-threads\" feature."
             );
         }
+         */
 
         // SAFETY: This function can only be called when the binding is initialized and from the main thread, so we know that it's initialized.
         unsafe { storage.binding.get_unchecked() }