Removed a redundant paragraph from the templates builtins doc.

Javascript code contained in the printed variable will be rendered

as-is, which could potentially lead to security issues.

If you need to escape the variables in the cycle, you must do so

explicitly::

    {% filter force_escape %}

        {% cycle var1 var2 var3 %}

    {% endfilter %}

For backwards compatibility, the ``{% cycle %}`` tag supports the much inferior

old syntax from previous Django versions. You shouldn't use this in any new

projects, but for the sake of the people who are still using it, here's what it