WeclomePage: no ugly frame

Change-Id: Ia2012ffcbffeb0bec124ed666eee2d79d79e05ce
Reviewed-by: Alessandro Portale <alessandro.portale@nokia.com>

src/plugins/welcome/welcomeplugin.cpp

@@ -158,6 +158,7 @@ WelcomeMode::WelcomeMode() :
     Utils::StyledBar* styledBar = new Utils::StyledBar(m_modeWidget);
     layout->addWidget(styledBar);
     QScrollArea *scrollArea = new QScrollArea(m_modeWidget);
+    scrollArea->setFrameShape(QFrame::NoFrame);
     layout->addWidget(scrollArea);
     scrollArea->setWidget(m_welcomePage);
     scrollArea->setWidgetResizable(true);