GH-75: Remove AbstractMaxChildrenPlugin helper

It does not seem to work, so I am removing it.

Without it, lable can be multiple links... that's okay.

Author: wesleyboar

taccsite_cms/contrib/helpers.py

@@ -28,41 +28,4 @@ def concat_classnames(classes):
 
 
 
-# GH-93, GH-142, GH-133: Upcoming functions here (ease merge conflict, maybe)
-
-
-
-# Allow plugins to set max number of nested children
-
-from django.shortcuts import render
-
-# SEE: https://github.com/django-cms/django-cms/issues/5102#issuecomment-597150141
-class AbstractMaxChildrenPlugin():
-    """
-    Abstract extension of `CMSPluginBase` that allows setting maximum amount of nested/child plugins.
-    Usage:
-    1. Extend this class,
-       after extending `CMSPluginBase` or a class that extends `CMSPluginBase`.
-    2. Set `max_children` to desired limit.
-    """
-
-    max_children = None
-
-    def add_view(self, request, form_url='', extra_context=None):
-
-        if self.max_children:
-            # FAQ: Placeholders do not have a parent, only plugins do
-            if self._cms_initial_attributes['parent']:
-                num_allowed = len([v for v in self._cms_initial_attributes['parent'].get_children() if v.get_plugin_instance()[0] is not None])
-            else:
-                num_allowed = len([v for v in self.placeholder.get_plugins() if v.get_plugin_instance()[0] is not None and v.get_plugin_name() == self.name])
-
-            if num_allowed >= self.max_children:
-                return render(request , "path/to/your/max_reached_template.html", {
-                    'max_children': self.max_children,
-                })
-        return super(AbstractMaxChildrenPlugin, self).add_view(request, form_url, extra_context)
-
-
-
 # GH-93, GH-142, GH-133: Upcoming functions here (ease merge conflict, maybe)