CodeAssist: Remove needless indirection in item access

Change-Id: Ibcb6c4898b34ecab52de28485befdf589bb880d7
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/texteditor/codeassist/genericproposalmodel.cpp

@@ -326,10 +326,3 @@ AssistProposalItem *GenericProposalModel::proposalItem(int index) const
 {
     return m_currentItems.at(index);
 }
-
-QPair<QList<AssistProposalItem *>::iterator,
-      QList<AssistProposalItem *>::iterator>
-GenericProposalModel::currentItems()
-{
-    return qMakePair(m_currentItems.begin(), m_currentItems.end());
-}