Revert "Add generateChallenge() in onResume()"

This reverts commit d59150eca6d7c0d0ea8a3fcba2a1add4beb36f05.

Bug: 133498264
Bug: 133440610

Reason for revert: Fixing in a different way

Change-Id: Ie444278a9e8b8aac259c31d311757ab8a39567f4
1 file changed