doc: Remove duplicate qdoc comments in qiterator.qdoc

The incorrect ones had been removed already, but they
reappeared after a branch merge, I think. This update
removes the old ones again.

Change-Id: Ief971819651fa3517f374d9f226c68bf7f015cb0
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

src/corelib/tools/qiterator.qdoc

@@ -1517,123 +1517,3 @@
 
     \sa key(), value(), remove()
 */
-
-/*! \class QKeyValueIterator
-    \inmodule QtCore
-    \since 5.10
-
-    \brief Iterator over the key/value pairs of an associative container.
-
-    The QKeyValueIterator class provides an STL-style iterator for returning
-    key/value pairs from associative containers like QHash and QMap. It
-    supports the same API as the STL associative containers, i.e. getting a
-    key/value pair when iterating through the container.
-
-    This will allow for better interoperability between QMap, QHash and friends
-    and STL-style algorithms.
-
-    \warning Iterators on implicitly shared containers do not work
-    exactly like STL-iterators. You should avoid copying a container
-    while iterators are active on that container. For more information,
-    read \l{Implicit sharing iterator problem}.
-*/
-
-/*! \typedef QKeyValueIterator::iterator_category
-    \internal
-*/
-
-/*! \typedef QKeyValueIterator::difference_type
-    \internal
-*/
-
-/*! \typedef QKeyValueIterator::value_type
-    \internal
-*/
-
-/*! \typedef QKeyValueIterator::pointer
-    \internal
-*/
-
-/*! \typedef QKeyValueIterator::reference
-    \internal
-*/
-
-/*! \fn QKeyValueIterator::QKeyValueIterator()
-
-    Constructs a default QKeyValueIterator.
-*/
-
-/*! \fn QKeyValueIterator::QKeyValueIterator(Iterator o)
-
-    Constructs a QKeyValueIterator on top of \a o.
-*/
-
-/*! \fn const T &QKeyValueIterator::operator*() const
-
-    Returns the current entry as a pair.
-*/
-
-/*! \fn bool QKeyValueIterator::operator==(QKeyValueIterator lhs, QKeyValueIterator rhs)
-
-    Returns \c true if \a rhs points to the same item as \a lhs otherwise returns
-    \c false.
-
-    \sa operator!=()
-*/
-
-/*! \fn bool QKeyValueIterator::operator!=(QKeyValueIterator lhs, QKeyValueIterator rhs) const
-
-    Returns \c true if \a rhs points to a different item than \a lhs otherwise
-    returns \c false.
-
-    \sa operator==()
-*/
-
-/*!
-    \fn QKeyValueIterator &QKeyValueIterator::operator++()
-
-    The prefix ++ operator (\c{++i}) advances the iterator to the
-    next item in the container and returns the iterator.
-
-    \note Advancing the iterator past its container's end() constitutes
-    undefined behavior.
-
-    \sa operator--()
-*/
-
-/*! \fn QKeyValueIterator QKeyValueIterator::operator++(int)
-
-    \overload
-
-    The postfix ++ operator (\c{i++}) advances the iterator to the
-    next item in the container and returns the iterator's prior value.
-
-    \note Advancing the iterator past its container's end() constitutes
-    undefined behavior.
-*/
-
-/*! \fn QKeyValueIterator &QKeyValueIterator::operator--()
-
-    The prefix -- operator (\c{--i}) backs the iterator up to the previous item
-    in the container and returns the iterator.
-
-    \note Backing up an iterator to before its container's begin() constitutes
-    undefined behavior.
-
-    \sa operator++()
-*/
-
-/*! \fn QKeyValueIterator QKeyValueIterator::operator--(int)
-
-    \overload
-
-    The postfix -- operator (\c{i--}) backs the iterator up to the previous item
-    in the container and returns the iterator's prior value.
-
-    \note Backing up an iterator to before its container's begin() constitutes
-    undefined behavior.
-*/
-
-/*! \fn Iterator QKeyValueIterator::base() const
-    Returns the underlying iterator this QKeyValueIterator is based on.
-*/