Remove temporary Chrome pre-13 fix for audio/video control styling bug.

Chrome 13 onwards no longer has a problem with -webkit-appearance
destroying the appearance of audio/video button controls. Ref necolas#20

Author: necolas

normalize.css

@@ -1,4 +1,4 @@
-/*! normalize.css 2011-09-14T10:12 UTC - http://github.com/necolas/normalize.css */
+/*! normalize.css 2011-09-14T10:27 UTC - http://github.com/necolas/normalize.css */
 
 /* =============================================================================
    HTML5 display definitions
@@ -366,7 +366,7 @@ table input {
  */
 
 button,
-html input[type="button"], 
+input[type="button"], 
 input[type="reset"], 
 input[type="submit"] {
     cursor: pointer; /* 1 */