automation.py no longer needs to set this SMIL pref, since it is now the default. Bug 532997, r=dholbert

build/automation.py.in

@@ -259,7 +259,6 @@ user_pref("network.manage-offline-status", false);
 user_pref("test.mousescroll", true);
 user_pref("security.default_personal_cert", "Select Automatically"); // Need to client auth test be w/o any dialogs
 user_pref("network.http.prompt-temp-redirect", false);
-user_pref("svg.smil.enabled", true); // Needed for SMIL mochitests until bug 482402 lands
 user_pref("media.cache_size", 100);
 user_pref("security.warn_viewing_mixed", false);