remove unnecessary conditional

if animationState evaluates to -1 or 0, it would end up in a conditional that assign its value to itself. Since this is redundant, it is better to remove this conditional, to avoid an extra check

src/static/js/pad_utils.js

@@ -308,11 +308,7 @@ var padutils = {
       {
         animationState = -1;
       }
-      else if (animationState <= 0)
-      {
-        animationState = animationState;
-      }
-      else
+      else if (animationState > 0)
       {
         animationState = Math.max(-1, Math.min(0, -animationState));
       }