Update the list of limitations for the Android editor

Remove 'GDExtension support' from the list, as support for it was added
for Godot 4.2.

tutorials/editor/using_the_android_editor.rst

@@ -36,7 +36,6 @@ Limitations & known issues
 Here are the known limitations and issues of the Android editor:
 
 - No C#/Mono support
-- No GDExtension support
 - No support for external script editors
 - While available, the *Vulkan Forward+* renderer is not recommended due to severe performance issues
 - No support for building and exporting an Android APK binary.