Revert "Update utils.js (#677)" (#693)

This reverts commit 833a5c2.

Author: gmsa

src/helpers/utils.js

@@ -111,15 +111,6 @@ export function compact(layout: Layout, verticalCompact: Boolean): Layout {
  * Compact an item in the layout.
  */
 export function compactItem(compareWith: Layout, l: LayoutItem, verticalCompact: boolean): LayoutItem {
-  // move to bottom
-  let maxY = 0;
-  for (let i = 0, len = compareWith.length; i < len; i++) {
-    if(maxY < compareWith[i].y) {
-      maxY = compareWith[i].y;
-    }
-  }
-  l.y = Math.max(l.y, maxY);
-  
   if (verticalCompact) {
     // Move the element up as far as it can go without colliding.
     while (l.y > 0 && !getFirstCollision(compareWith, l)) {