[WebProfilerBundle] changed the license for the icons as they have been changed to new customized ones

src/Symfony/Bundle/WebProfilerBundle/Resources/ICONS_LICENSE.txt

@@ -1,6 +1,5 @@
 Icons License
 =============
 
-Glyphish icons (http://glyphish.com/) created by Joseph Wain
-(http://www.penandthink.com/) are shared under a Creative Commons Attribution
-license (http://creativecommons.org/licenses/by/3.0/us/).
+Icons created by Sensio (http://www.sensio.com/) are shared under a Creative
+Commons Attribution license (http://creativecommons.org/licenses/by-sa/3.0/).