GitLab

Disable screen reader reading voice query result because Assistant
is going to respond with voice anyway.

Bug: b:113734839
Test: locally build and test
Change-Id: Ifa1079a6c551e8682857b8ab8e8afe0dd05218a7
Reviewed-on: https://chromium-review.googlesource.com/c/1232883Reviewed-by: Muyuan Li <muyuanli@chromium.org>
Commit-Queue: Xiaohui Chen <xiaohuic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#597326}