Remove Vue2-based widget (#6610)

* Remove Vue2-based widget

* move floatformat.js

* Delete docready.js

* Update widget.py

src/pretix/control/forms/global_settings.py

@@ -105,13 +105,6 @@ class GlobalSettingsForm(SettingsForm):
                     domain=settings.SITE_URL
                 )
             )),
-            ('widget_vue2_origins', forms.CharField(
-                widget=forms.Textarea(attrs={'rows': '3'}),
-                required=False,
-                # Not translated on purpose, this is a temporary feature and contains too many special case words
-                label="Vue2 widget origins",
-                help_text="One origin per line (e.g. https://example.com). Requests from these origins will be served the old vue2-based widget.",
-            ))
         ])
         responses = register_global_settings.send(self)
         for r, response in sorted(responses, key=lambda r: str(r[0])):