validation: remove unused raised statement

rhodecode/model/validation_schema/schemas/integration_schema.py

@@ -123,8 +123,6 b' class IntegrationScopeType(colander.Sche'
             else:
                 return 'global'
 
-        raise colander.Invalid(node, '%r is not a valid scope' % appstruct)
-
     def deserialize(self, node, cstruct):
         if cstruct is colander.null:
             return colander.null