Temporarily turn off I/O support

Aristotelis has asked for a bit more time to work on it, and this unlocks
a new beta/stable release. Will revert this commit after the release is
out.

qt/aqt/addcards.py

@@ -51,7 +51,6 @@ class AddCards(QMainWindow):
         add_close_shortcut(self)
         self._load_new_note()
         self.setupButtons()
-        self.col.add_image_occlusion_notetype()
         self.history: list[NoteId] = []
         self._last_added_note: Optional[Note] = None
         gui_hooks.operation_did_execute.append(self.on_operation_did_execute)

qt/aqt/editor.py

@@ -31,7 +31,6 @@ from anki.collection import Config, SearchNode
 from anki.consts import MODEL_CLOZE
 from anki.hooks import runFilter
 from anki.httpclient import HttpClient
-from anki.models import StockNotetype
 from anki.notes import Note, NoteFieldsCheckResult
 from anki.utils import checksum, is_lin, is_win, namedtmp
 from aqt import AnkiQt, colors, gui_hooks
@@ -572,10 +571,7 @@ require("anki/ui").loaded.then(() => require("anki/NoteEditor").instances[0].too
         )
 
     def current_notetype_is_image_occlusion(self) -> bool:
-        return bool(self.note) and (
-            self.note.note_type().get("originalStockKind", None)
-            == StockNotetype.OriginalStockKind.ORIGINAL_STOCK_KIND_IMAGE_OCCLUSION
-        )
+        return False
 
     def _save_current_note(self) -> None:
         "Call after note is updated with data from webview."