Revert sound hack for iPhone. Didn't work! :/

Author: debugger22

app/public/js/main.js

@@ -361,14 +361,3 @@ function drawEvent(data, svg_area) {
     $('#area svg g:lt(10)').remove();
   }
 }
-
-
-// Some hack to start Howler.js it on iPhone
-var unlockIOSAudioPlayback = function () {
-    var context = Howler.ctx;
-    var oscillator = context.createOscillator();
-    oscillator.frequency.value = 200;
-    oscillator.connect(context.destination);
-    oscillator.start(0);
-    oscillator.stop(0);
-};