Remove redundant animation prefixes

CSS animations can be used safely without any prefixes

Author: MartijnCuppens

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar.css.twig

@@ -363,21 +363,8 @@ div.sf-toolbar .sf-toolbar-block a:hover {
     text-align: right;
 }
 .sf-ajax-request-loading {
-    -webkit-animation: sf-blink .5s ease-in-out infinite;
-    -o-animation: sf-blink .5s ease-in-out infinite;
-    -moz-animation: sf-blink .5s ease-in-out infinite;
     animation: sf-blink .5s ease-in-out infinite;
 }
-@-webkit-keyframes sf-blink {
-    0% { background: #222; }
-    50% { background: #444; }
-    100% { background: #222; }
-}
-@-moz-keyframes sf-blink {
-    0% { background: #222; }
-    50% { background: #444; }
-    100% { background: #222; }
-}
 @keyframes sf-blink {
     0% { background: #222; }
     50% { background: #444; }