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; }