Revert "better fix for not scrolling textarea"

Focusing an offscreen textarea might be bad for usability.

app/assets/javascripts/utility.js

@@ -103,11 +103,4 @@
     this.selectRange(this.val().length, this.val().length);
     return this;
   }
-
-  $.fn.focusWithoutScroll = function(){
-    var x = window.scrollX;
-    var y = window.scrollY;
-    this.focus();
-    window.scrollTo(x, y);
-  };
 })();