Remove __init__ methods

Co-authored-by: podliashanyk <[email protected]>

python/nav/web/seeddb/forms/__init__.py

@@ -168,10 +168,7 @@ class RoomFilterForm(forms.Form):
         Location.objects.order_by('id').all(), required=False
     )
     location.widget.attrs.update({"class": "select"})
-
-    def __init__(self, *args, **kwargs):
-        super(RoomFilterForm, self).__init__(*args, **kwargs)
-        self.attrs = get_single_layout(heading="Filter rooms", row=self["location"])
+    attrs = get_single_layout(heading="Filter rooms", row=[location])
 
 
 class RoomForm(forms.ModelForm):
@@ -287,10 +284,7 @@ class NetboxTypeFilterForm(forms.Form):
     """Form for filtering a netbox type by vendor"""
 
     vendor = forms.ModelChoiceField(Vendor.objects.order_by('id').all(), required=False)
-
-    def __init__(self, *args, **kwargs):
-        super(NetboxTypeFilterForm, self).__init__(*args, **kwargs)
-        self.attrs = get_single_layout(heading="Filter types", row=self["vendor"])
+    attrs = get_single_layout(heading="Filter types", row=[vendor])
 
 
 class NetboxTypeForm(forms.ModelForm):