Removed bind polyfill as it's in IE9+ anyway

Author: photonstorm

src/polyfills/Function.bind.js

@@ -2,7 +2,6 @@ require('./Array.forEach');
 require('./Array.isArray');
 require('./AudioContextMonkeyPatch');
 require('./console');
-require('./Function.bind');
 require('./Math.trunc');
 require('./performance.now');
 require('./requestAnimationFrame');