Remove duplicate renderPage invocation

https://forums.ankiweb.net/t/duplicate-execution-of-the-same-operation-in-code/30943

qt/aqt/deckbrowser.py

@@ -67,7 +67,6 @@ class DeckBrowser:
     def show(self) -> None:
         av_player.stop_and_clear_queue()
         self.web.set_bridge_command(self._linkHandler, self)
-        self._renderPage()
         # redraw top bar for theme change
         self.mw.toolbar.redraw()
         self.refresh()