Bug 346215

When you set your own avatar for your account through system settings > Password and User Account, and then you try to remove the picture you get an error from the system manager:
"Could not delete file /home/user/.face.icon."
When you then click on "Ok"', you get a crash on systemsettings process with a segmentation fault.


Reproducible: Always

Steps to Reproduce:
1. Use a default image as your own avatar and applyExecutable: systemsettings5 PID: 8367 Signal: Segmentation fault (11) Time: 15/04/2015 13:51:14
2. Remove It
3. Apply!

Actual Results:  
The image is not removed from your user account. 

Expected Results:  
The image would be no more used as your avatar for your account. 

Thread 1 (Thread 0x7f5d87395780 (LWP 8367)):
[KCrash Handler]
#5  0x0000000000000000 in ?? ()
#6  0x00007f5d8436f6ff in QMetaObject::invokeMethod(QObject*, char const*, Qt::ConnectionType, QGenericReturnArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument, QGenericArgument) () from /usr/lib/libQt5Core.so.5
#7  0x00007f5d7ede02ca in KDialogJobUiDelegate::Private::next() () from /usr/lib/libKF5JobWidgets.so.5
#8  0x00007f5d8439212a in QObject::event(QEvent*) () from /usr/lib/libQt5Core.so.5
#9  0x00007f5d85808acc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#10 0x00007f5d8580df10 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#11 0x00007f5d84360dbb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#12 0x00007f5d84362dfb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#13 0x00007f5d843b8dc3 in ?? () from /usr/lib/libQt5Core.so.5
#14 0x00007f5d812069fd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#15 0x00007f5d81206ce0 in ?? () from /usr/lib/libglib-2.0.so.0
#16 0x00007f5d81206d8c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#17 0x00007f5d843b91b7 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#18 0x00007f5d8435e852 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#19 0x00007f5d8436622c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#20 0x000000000040ed8c in main ()