Removed repeated documentation

There is already a paragraph below describing how to call functions in both their internal and external forms (and IMO it's clearer).
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Nicolás Venturo 2018-07-12 15:25:42 -03:00 committed by GitHub
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@ -386,10 +386,6 @@ By default, function types are internal, so the ``internal`` keyword can be
omitted. In contrast, contract functions themselves are public by default,
only when used as the name of a type, the default is internal.
There are two ways to access a function in the current contract: Either directly
by its name, ``f``, or using ``this.f``. The former will result in an internal
function, the latter in an external function.
If a function type variable is not initialized, calling it will result
in an exception. The same happens if you call a function after using ``delete``
on it.