[docs] [issue29453] Remove reference to undefined dictionary ordering in Tutorial

[R. David Murray]

R. David Murray added the comment:

It is not (yet) a language requirement that ordinary dictionaries be ordered.  This patch may become appropriate in 3.7, but that has not yet been determined.  It is not appropriate for 3.6.  In 3.6, the order of keys in an ordinary dictionary is still undefined, even though it is in practice consistent in CPython.

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nosy: +r.david.murray
versions:  -Python 3.6

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<http://bugs.python.org/issue29453>
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