regression : cannot remove top sites tile from new tab page

[alexwykoff]

• Did you search for similar issues before submitting this one?
  yes

• Describe the issue you encountered:
  attempting to remove a top sites tile gave a confirmation modal, but the tile was not removed

• Platform (Win7, 8, 10? macOS? Linux distro?):
  repro'd on Win7 & macOS

• Brave Version (revision SHA):
  0.18.23

• Steps to reproduce:

  1. open the new tab page
  2. try to delete a tile

• Actual result:
  tile is not removed

• Expected result:
  the tile should be removed

• Will the steps above reproduce in a fresh profile? If not what other info can be added?
  yes

• Is this an issue in the currently released version?
  yes

• Can this issue be consistently reproduced?
  yes

• Extra QA steps:
  1.
  2.
  3.

• Screenshot if needed:

• Any related issues:

[bsclifton]

This is similar to #10411... but I think it's different

When running on master, the icon will actually remove itself when the X is clicked (after ~5 seconds). With 0.18.x, nothing happens at all

[bsclifton]

On second thought, closing as a duplicate of #10411 since only one post mentions running from master