C++: Set property on CppEditorWidget when in function link.

To allow FakeVim to pick up on the state and pass through Enter/Return.

Change-Id: Ia203a1b3fa8877d90cbaf4b46183bb01a6de1362
Reviewed-on: http://codereview.qt.nokia.com/3856
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/cppeditor/cppfunctiondecldeflink.cpp

@@ -308,8 +308,6 @@ void FunctionDeclDefLink::apply(CPPEditorWidget *editor, bool jumpToMatch)
                     TextEditor::TextContent(
                         tr("Target file was changed, could not apply changes")));
     }
-
-    hideMarker(editor);
 }
 
 template <class T>