Remove unnecessary comments in find_in_page.js.

This CL removes the remaining comments about scrolling in
find_in_page.js.

Bug: 911780
Change-Id: Ie2ce2c4c45e2f829dba2338446943da63da13946
Reviewed-on: https://chromium-review.googlesource.com/c/1365896Reviewed-by: Stepan Khapugin <stkhapugin@chromium.org>
Commit-Queue: Yi Su <mrsuyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615476}

ios/chrome/browser/find_in_page/resources/find_in_page.js

@@ -710,7 +710,7 @@ function scaleCoordinates_(coordinates) {
 };
 
 /**
- * Finds the position of the result and scrolls to it.
+ * Finds the position of the result.
  * @return {string} JSON encoded array of the scroll coordinates "[x, y]".
  */
 function findScrollDimensions_() {
@@ -722,9 +722,6 @@ function findScrollDimensions_() {
   let xPos = normalized[0];
   let yPos = normalized[1];
 
-  // Perform the scroll.
-  // window.scrollTo(xPos, yPos);
-
   match.addSelectHighlight();
   let scaled = scaleCoordinates_(normalized);
   let index = match.visibleIndex;